Multilink PPP [7:66087]
Anyone have a sample config for Multilink PPP w/ 2 serial ports (WIC-1T). Thanks. Josh Vince Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66087t=66087 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multilink PPP [7:66087]
interface Serial0/0 no ip address encapsulation ppp keepalive 10 ppp multilink multilink-group 1 ! interface Serial0/1 no ip address encapsulation ppp keepalive 10 ppp multilink multilink-group 1 ! interface Multilink1 ip address x.x.x.x m.m.m.m ppp multilink multilink-group 1 Joshua Vince wrote in message news:[EMAIL PROTECTED] Anyone have a sample config for Multilink PPP w/ 2 serial ports (WIC-1T). Thanks. Josh Vince Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=66098t=66087 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: MultiLink PPP [7:46534]
Yes, I read the RFC today and its 4bytes. I will not forget this. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46560t=46534 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISDN/Multilink PPP [7:46570]
I have a vendor who is dialing into my network via isdn. They are initiating the call with a Lucent Superpipe router. I have a 2620 on my end. My vendor is telling me that his equipment can not dial-up the second B channel and that I have to bring up the second line. His equipment does not allow incoming calls, so callback is not an option. I know of no way to bring up the second B channel without dialing, and can not find anything on Cisco's site to lead me to believe you can. My vendor insists that he has Cisco customers that are doing it, but has not been able to get me a config yet. Any ideas?? Thanks! Chris Dumais CCNP, CNA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46570t=46570 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN/Multilink PPP [7:46570]
do the ppp multi and have the int come up after the first chanel has a load of 1. Chris Dumais wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a vendor who is dialing into my network via isdn. They are initiating the call with a Lucent Superpipe router. I have a 2620 on my end. My vendor is telling me that his equipment can not dial-up the second B channel and that I have to bring up the second line. His equipment does not allow incoming calls, so callback is not an option. I know of no way to bring up the second B channel without dialing, and can not find anything on Cisco's site to lead me to believe you can. My vendor insists that he has Cisco customers that are doing it, but has not been able to get me a config yet. Any ideas?? Thanks! Chris Dumais CCNP, CNA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46571t=46570 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN/Multilink PPP [7:46570]
Isn't the command to set the load dialer load-threshold 1? Doesn't this initiate a call. I don't think I can use this if I am not allowed to dial my vendor. Is there another way to set the load? Chris Dumais, CCNP, CNA Lan Analyst IT - NSS Networking Services Team Maine Medical Center (207)871-6940 [EMAIL PROTECTED] Steven A. Ridder 6/14/02 9:33:32 AM do the ppp multi and have the int come up after the first chanel has a load of 1. Chris Dumais wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a vendor who is dialing into my network via isdn. They are initiating the call with a Lucent Superpipe router. I have a 2620 on my end. My vendor is telling me that his equipment can not dial-up the second B channel and that I have to bring up the second line. His equipment does not allow incoming calls, so callback is not an option. I know of no way to bring up the second B channel without dialing, and can not find anything on Cisco's site to lead me to believe you can. My vendor insists that he has Cisco customers that are doing it, but has not been able to get me a config yet. Any ideas?? Thanks! Chris Dumais CCNP, CNA Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46588t=46570 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ISDN/Multilink PPP [7:46570]
More accurately dialer load-threshold set the traffic level which is required to have another call initiated. If the Lucent will not bring up a second link it must not support multilink so I don't know what good it will do to try and force a second connection. You can fet a cheap 800 series router that will do that and more. Ok yes I have some Cisco stock:) Dave Christopher Dumais wrote: Isn't the command to set the load dialer load-threshold 1? Doesn't this initiate a call. I don't think I can use this if I am not allowed to dial my vendor. Is there another way to set the load? Chris Dumais, CCNP, CNA Lan Analyst IT - NSS Networking Services Team Maine Medical Center (207)871-6940 [EMAIL PROTECTED] Steven A. Ridder 6/14/02 9:33:32 AM do the ppp multi and have the int come up after the first chanel has a load of 1. Chris Dumais wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... I have a vendor who is dialing into my network via isdn. They are initiating the call with a Lucent Superpipe router. I have a 2620 on my end. My vendor is telling me that his equipment can not dial-up the second B channel and that I have to bring up the second line. His equipment does not allow incoming calls, so callback is not an option. I know of no way to bring up the second B channel without dialing, and can not find anything on Cisco's site to lead me to believe you can. My vendor insists that he has Cisco customers that are doing it, but has not been able to get me a config yet. Any ideas?? Thanks! Chris Dumais CCNP, CNA -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 Emotion should reflect reason not guide it Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46600t=46570 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MultiLink PPP [7:46534]
Hi All I know that mppp allows the the reassembly of the packets with seq, can someone tell me how many bytes in the frame are used for seq/assembly? believe it or not, its in the CID exam Cheers Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46534t=46534 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: MultiLink PPP [7:46534]
Wellaren't you kind of close of violating the NDA. Personally speakingI still don't know this answer. I looked for about 30 minutes in several books and then just didn't care any more. Theo Kris Keen Sent by: [EMAIL PROTECTED] 06/14/2002 11:46 AM Please respond to Kris Keen To: [EMAIL PROTECTED] cc: Subject:MultiLink PPP [7:46534] Hi All I know that mppp allows the the reassembly of the packets with seq, can someone tell me how many bytes in the frame are used for seq/assembly? believe it or not, its in the CID exam Cheers Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46539t=46534 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: MultiLink PPP [7:46534]
No, the topic is in it but the exact question has been reworded :) Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46549t=46534 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: MultiLink PPP [7:46534]
Would RFC1990, section 3 be what you are after? I tend to find that for low level packet format questions, checking the RFC is almost always quicker and more successful than searching in books, most of which don't go down to that level. JMcL - Forwarded by Jenny Mcleod/NSO/CSDA on 14/06/2002 03:05 pm - [EMAIL PROTECTED] Theodore.Stout Sent by: [EMAIL PROTECTED] 14/06/2002 01:29 pm Please respond to [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject:Re: MultiLink PPP [7:46534] Is this part of a business decision process?: Wellaren't you kind of close of violating the NDA. Personally speakingI still don't know this answer. I looked for about 30 minutes in several books and then just didn't care any more. Theo Kris Keen Sent by: [EMAIL PROTECTED] 06/14/2002 11:46 AM Please respond to Kris Keen To: [EMAIL PROTECTED] cc: Subject:MultiLink PPP [7:46534] Hi All I know that mppp allows the the reassembly of the packets with seq, can someone tell me how many bytes in the frame are used for seq/assembly? believe it or not, its in the CID exam Cheers Important: This e-mail is intended for the use of the addressee and may contain information that is confidential, commercially valuable or subject to legal or parliamentary privilege. If you are not the intended recipient you are notified that any review, re-transmission, disclosure, use or dissemination of this communication is strictly prohibited by several Commonwealth Acts of Parliament. If you have received this communication in error please notify the sender immediately and delete all copies of this transmission together with any attachments. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=46550t=46534 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
MPSL and Multilink PPP [7:36788]
Hello I have some problems with our Back Bon. We use 3xE1 connection between the same P routers ( 7500), We want to use Multilink PPP on this. But I've read that on Mulltilink PPP and MPLS isn't possible to use QoS. Does anyone test this configuration or use Multilink PPP with MPLS ? Thanks for any help. MM Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=36788t=36788 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multichassis Multilink PPP [7:28571]
I want to enable multichassis multilink ppp on three 5400 universal access servers accepting both analog and ISDN calls i use groups async interface as a profile for analog calls and configuring the d channel of PRI to b the profile for ISDN calls should i create virtual template and how can i make sure that MMP is running correctly Best Regards, Mohamed Saro Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28571t=28571 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multilink PPP [7:17367]
I have found another configuration for configuring two serial ports for multilink i think this configuration will work, just want an opinion from you guys. ip subnet-zero multilink virtual-template 1 ! interface Virtual-Template1 ip 192.168.0.1 255.255.255.252 ppp authentication chap ppp multilink ! interface Serial0 no ip address encapsulation ppp no fair-queue ppp multilink pulse-time 3 ! interface Serial1 no ip address encapsulation ppp no fair-queue ppp multilink pulse-time 3 ! interface Ethernet0 ip address 10.17.2.254 255.255.255.0 ! Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18421t=17367 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multilink PPP [7:17367]
Well i am using E1 for point-to-point conectivety for bandwidth transmission (2048 kbps), the solution that you have given is load balancing where both E1's have individual P-to-P IP's this configuration is not transparent to the transport layer resulting in per packet load balancing. The technique that i am working on has one IP for both E1's and the result is that, this arrangement is transparent to the transport layer and traffic coming down from transport layer treats both the E1's as one bundled bandwidth of 4Mbps. If you have a solution or configuration hints for this scenario please let me know Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=18302t=17367 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multilink PPP [7:17367]
Hi, I am working on combining to E1's to work as one so that the upper layers would see the bundle as a 4Mbps link with only one point to point IP at least that's what cisco says, i read about it on Cisco and found some sample configurations. I would like you guys to go through this setup and opinionate on this before i try it on actual E1's !! . I will have to ask my provider to configure at their end a similar configuration and also conbine the 2E1's to be addressed by IP address. interface Serial6/0 encapsulation ppp no keepalive dialer in-band dialer idle-timeout 30 dialer rotary-group 1 pulse-time 1 interface Serial6/1 no ip address encapsulation ppp no keepalive dialer in-band dialer idle-timeout 30 dialer rotary-group 1 pulse-time 1 interface Dialer1 ip address 192.168.0.1 255.255.255.0 encapsulation ppp dialer in-band dialer idle-timeout 30 dialer map llc2 name RouterB dialer map ip 1.1.1.2 name RouterB dialer load-threshold 1 either dialer-group 1 ppp multilink ppp authentication chap appn control-point NETA.ROUTERA complete appn port DIAL Dialer1 complete appn link-station ROUTERB port DIAL complete dialer-list 1 protocol ip permit dialer-list 1 protocol llc2 permit Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17367t=17367 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multilink PPP [7:17367]
What's the type of E1 you're planning to use? Is there any E1 PRI in your scenario? I assume you're using point-to-point E1 however your configuration has references to dilaer profiles, which are irrelevent to permanent PPP connections. To configure 2 (dedicated, ppp) E1's as a Multilink bundle is very straight forward, however, PPP multilink is not the preferred solution and has many drawbacks. Why don't you just configure your (and your provider's) routers to use the 2 routes equally? Actually this will accomplish the same result you're aiming at, but you gain greater reliability. Muhammad Shakeel Shamsi wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... Hi, I am working on combining to E1's to work as one so that the upper layers would see the bundle as a 4Mbps link with only one point to point IP at least that's what cisco says, i read about it on Cisco and found some sample configurations. I would like you guys to go through this setup and opinionate on this before i try it on actual E1's !! . I will have to ask my provider to configure at their end a similar configuration and also conbine the 2E1's to be addressed by IP address. interface Serial6/0 encapsulation ppp no keepalive dialer in-band dialer idle-timeout 30 dialer rotary-group 1 pulse-time 1 interface Serial6/1 no ip address encapsulation ppp no keepalive dialer in-band dialer idle-timeout 30 dialer rotary-group 1 pulse-time 1 interface Dialer1 ip address 192.168.0.1 255.255.255.0 encapsulation ppp dialer in-band dialer idle-timeout 30 dialer map llc2 name RouterB dialer map ip 1.1.1.2 name RouterB dialer load-threshold 1 either dialer-group 1 ppp multilink ppp authentication chap appn control-point NETA.ROUTERA complete appn port DIAL Dialer1 complete appn link-station ROUTERB port DIAL complete dialer-list 1 protocol ip permit dialer-list 1 protocol llc2 permit Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17370t=17367 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multilink PPP [7:17367]
Don't forsget: if this is a lower platform, like 1600, you might have problems with multilinking 2 serial connections. Anyhow, this config that you have is wrong, because you are obviously not using PRI interfaces. If you were using them, dialer interface would be the perfect solution. What you need is so called Virtual Template. Go to cisco.com and do search on configuring Virtual Template, that will explain everything. Regards, Dragi Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=17379t=17367 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multilink PPP - how scalable and efficient is it anyway? [7:7685]
I was wondering if anyone can comment on the scalability and efficiency of MLPPP. I would like to direct this question to those who work at telcos, as well as Mr. Berkowitz, could you please please provide me with some information? For example, I have noticed Cisco documentation about the 1 ESR that states that you can link 10 DS-1's. Why just 10, what happens if you try to bundle more?And exactly how efficient is it when 10 DS-1's are linked together like that - as I have to believe there must be significant overhead that reduces the throughput below the theoretical limit of 10*DS1= 15.44 Mbps. But exactly how much bandwidth could you expect - 10 M? 12M? More? http://www.cisco.com/univercd/cc/td/doc/product/aggr/1/techedge/ch1ovw.h tm Also, in a discussion with one of the head guys at UUNet, he scoffed at the notion of being able to use multilink to deal with very high-capacity future networks. For example, he gave the example of having 100 cross-country optical links, each using DWDM with 100 wavelengths, for a grand total of 10,000 links, and he completely dismissed the idea of using multilink to bond 10,000 links together. Now 10,000 is indeed ridiculous, but then that begs the question - what's reasonable? 10 (like the Cisco ESR)? 100? 1000? Unfortunately, I don't have the link of that guy's interview on me, I'll find it soon. Finally, I've noticed that Cisco recommends for async links, that PPP not be used for more than 3 links. Why? Exactly what happens when you bundle more than 3 async links? Thanks in advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=7685t=7685 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
can I have 2 multilink-PPP bundles? [7:4827]
Hi all: Consider this situation. Let's say I have a router (call it router A) with 4 serial interfaces, each connected to a T1 line. This router is connected to 2 other routers by these serial interfaces, such that S0 and S1 are connected to router B, and S2 and S3 are connected to router C. So on router A I want to be able to create 2 multilink PPP bundles of 2 serial interfaces each. Can I do this? Note, I do not want all interfaces in 1 bundle, I want 2 entirely different bundles. Also, there is no dialing going on anywhere, so I do not think you can use any Dialer interfaces (I tried with both dialer pools and rotary groups, and got nowhere, as if I don't add a dialer string, then debug's complain about no dialer string, and then when I do add a bogus dialer string, the serial interface still refuses to bind to the dialer interface). If this is possible, what are the commands? Yes, I've thought about using virtual-templates. But then, I don't see any command (in 12.0) to link a particular bundle with a particular virtual-template. And I've already explored the Dialer commands, to no avail. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=4827t=4827 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multilink PPP and Multi-chassis Multilink PPP [7:4679]
Has anyone ever done this with frame circuits? I have 3 T1 circuits terminating on one of our shared frame circuits and would like to bond at least two without going to point-to-point. Anyone? Kelly D Griffin, CCNA, CCDA Network Engineer Kg2 Network Design 877.418.4025 http://www.kg2.com http://1cis.com Free E-mail Servers with unlimited mailboxes 1st Class Internet Solutions Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=4679t=4679 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: multilink PPP
sounds like a strange request, but I guess any router with 2 Serials 1 Ethernet (something like a 2501). You'll need a couple of modems. Have you thought about mentioning ISDN or DSL ??? With this type of setup you could use cheaper SOHO type router (or CPE) have the ISP throw in a redundant dial-up link with the monthly service. Phil - Original Message - From: "Alec Smiths" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, March 23, 2001 11:40 AM Subject: multilink PPP Hi all, My customer wants to make multilink PPP to SP using 2 analog dial-up lines. What sort of CPE device does he need ? And do you have any idea about the prices ? Regards, Alec __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
multilink PPP
Hi all, My customer wants to make multilink PPP to SP using 2 analog dial-up lines. What sort of CPE device does he need ? And do you have any idea about the prices ? Regards, Alec __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: multilink PPP
You could do this with a computer with 2 modems, or netopia makes a dual 56k router that is a little pricey but nice. Bri On Fri, 23 Mar 2001, Alec Smiths wrote: Hi all, My customer wants to make multilink PPP to SP using 2 analog dial-up lines. What sort of CPE device does he need ? And do you have any idea about the prices ? Regards, Alec __ Do You Yahoo!? Get email at your own domain with Yahoo! Mail. http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Multilink ppp over E1
Ravi, Here is some info that may guide you on MLPPP over T1/E1 http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120 t/120t3/multippp.htm -Original Message- From: ravi [mailto:[EMAIL PROTECTED]] Sent: Wednesday, March 14, 2001 6:20 AM To: [EMAIL PROTECTED] Subject: Multilink ppp over E1 Hi there, I am due to configure a Cisco 7206VXR router with an unbalanced E1-G703 Serial Port Adpater. I was wondering if anyone had documentation\links to information, relating to Multilink ppp over E1. Cheers Ravi _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multilink ppp over E1
Hi there, I am due to configure a Cisco 7206VXR router with an unbalanced E1-G703 Serial Port Adpater. I was wondering if anyone had documentation\links to information, relating to Multilink ppp over E1. Cheers Ravi _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multichassis Multilink PPP
Hi, Where is your point of failure. I would be inclined to spread the load across all the 5300's. Given you will then have a fair amount of redundant space should a 5300 fail there should not be much difficulty getting onto another. The clue is to spec up the primary rates to get the maximum benefit. Just a thought Teunis Hobart, Tasmania Australia On Saturday, February 24, 2001 at 05:09:38 PM, jono max wrote: Hi I have to provide a solution for 300+ ISDN dial in clients. Can this be achieved with a couple of AS5300's each with an 8port PRI card ? Basically looking to combine two AS5300 's for the "hub" site...then come up with a resilient solution. Can you have two further AS5300's for back up within a Multichassis Multilink PPP "group". Any comments would be appreciated. Thanks JM _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] -- www.tasmail.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multichassis Multilink PPP
Hi I have to provide a solution for 300+ ISDN dial in clients. Can this be achieved with a couple of AS5300's each with an 8port PRI card ? Basically looking to combine two AS5300 's for the "hub" site...then come up with a resilient solution. Can you have two further AS5300's for back up within a Multichassis Multilink PPP "group". Any comments would be appreciated. Thanks JM _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Multilink PPP with ISDN between Cisco 2504 and IBM 2210 [Virus checked]
Hello all, we must install Cisco Router in our IBM environment :)) . We solved a = lot of problems but we have one unsolved problem: The Cisco router must dialed-in to the IBM router with both ISDN B channels. The connection comes not up with the feature multilink. We te= sted a lot of possibilties: - dial-in Cisco - Cisco with and without Multilink is o.k. - dial-in IBM - IBM with and without Multilink is o.k. - dial-in Cisco - IBM without Multilink (one ISDN B channel) is also = o.k. Only the multilink solution between Cisco an IBM doesn=B4t work. Have any of you an idea ?? We think that we have a problem with the LCP layer. For instance how ca= n I set the MRRU ? Software: c2500-is-l_120-8.bin and eptf09i.e11 See the files (configuration of the Cisco router and a debug of the IBM= ), please. (See attached file: Multilink.log)(See attached file: cisco2504.log) Thank=B4s a lot. Thomas Wacker (CCNA) OE33 Betriebsplanung/Projekte nbg Netzbetriebsgesellschaft mbH Au=DFenstelle Leipzig E-Mail:[EMAIL PROTECTED]= _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Subject: Multilink PPP with ISDN between Cisco 2504 and IBM 2210
A couple of thoughts. First, can I presume from your statement below that you are able to initiate a call from the Cisco router to the IBM 2210 (even if it is not multilink). According to IBM's web site, the 2210 does support PPP multilink. Nevertheless, like Animal Farm's pigs, some support for multilink may be more equal than others. I note on IBM's web page that there is not an explicit support for the RFCs that cover PPP (unlike Cisco's support). This may indicate compatability problems. http://www.networking.ibm.com/220/220over.html#s20 I think you have hit upon a key ingredient for interoperability, namely the negotiated maximum received reconstructed unit (MRRU). To quote from RFC 1990, here is paragraph 5.1.1 (excerpt): The Max-Receive-Reconstructed unit field is two octets, and specifies the maximum number of octets in the Information fields of reassembled packets. A system MUST be able to receive the full 1500 octet Information field of any reassembled PPP packet although it MAY attempt to negotiate a smaller, or larger value. The number 1500 here comes from the specification for the MRU LCP option in PPP; if this requirement is changed in a future version of RFC1661 the same rules will apply here. I think one key to minimizing the headache here will be to go to that MRRU which both hosts must be able to support. If you leave most of your interfaces at their default, a 1500 MRRU should be attainable. While looking to see what configurations commands might affect the MRRU, I noticed that it *appears* the 2210 does not have explicit support for PPP multilink, nor does it *appear* to have an LCP option to negotiate it. I hope I read the IBM configuration guide incorrectly. See chapter 28 (watch wrap): http://publib.boulder.ibm.com/cgi- bin/bookmgr/BOOKS/E2FB5004/CCONTENTS Additionally, this passage from IBM's marketing brochure did not inspire confidence that standards based (RFC 1990) multilink was used in the 2210: http://www.networking.ibm.com/220/220over.html Specifically, "Hardware and software for dependable routing solutions When equipped with one of the many available ISDN adapters, the 2210 Nways Multiprotocol Router and Nways MRS are dependable ISDN solutions. The Quad BRI adapter offers increased bandwidth and provides backup capability without requiring more expensive Primary Rate ISDN (PRI) service. With the Point-to-Point Protocol multilink toolsupplied with the 2210bandwidth can be increased dynamically by grouping the B-channels. And for even greater bandwidth administration, rely on IBM's award-winning Bandwidth Reservation System (BRS) to manage traffic priority over Frame Relay, PPP and dial connections. I have never heard of multilink referred to as a "tool". HTH, Paul Werner Subject: Multilink PPP with ISDN between Cisco 2504 and IBM 2210 [Virus checked] Hello all, we must install Cisco Router in our IBM environment :)) . We solved a = lot of problems but we have one unsolved problem: The Cisco router must dialed-in to the IBM router with both ISDN B channels. The connection comes not up with the feature multilink. We te= sted a lot of possibilties: - - dial-in Cisco - Cisco with and without Multilink is o.k. - - dial-in IBM - IBM with and without Multilink is o.k. - - dial-in Cisco - IBM without Multilink (one ISDN B channel) is also = o.k. Only the multilink solution between Cisco an IBM doesn=B4t work. Have any of you an idea ?? We think that we have a problem with the LCP layer. For instance how ca= n I set the MRRU ? Software: c2500-is-l_120-8.bin and eptf09i.e11 See the files (configuration of the Cisco router and a debug of the IBM= ), please. (See attached file: Multilink.log)(See attached file: cisco2504.log) Thank=B4s a lot. Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Subject: Multilink PPP with ISDN between Cisco 2504 and IBM 2210
In addition to Paul's very relevant comments, I have recently worked through a problem with PPP multilink (i.e. it doesn't work) when used in conjunction with priority queueing with various 12.0 IOS versions, I think including 12.0(8). This was on an AS5300, though, not a 2500. I don't believe the TAC ever gave it a bug number, despite some prompting, but an upgrade to 12.1(4) fixed the problem. If IBM thinks they do support multilink, try stripping your Cisco config of every non-essential item, even if it doesn't seem to be related to PPP. debug ppp negotiation and debug ppp packet were quite useful in my case in tracking down the problem, including seeing if the MRRU LCP option is requested or rejected. There are various other debug ppp options available which may be useful. JMcL -- Forwarded by Jenny Mcleod/NSO/CSDA on 04/01/2001 04:44 pm --- Paul Werner [EMAIL PROTECTED]@groupstudy.com on 04/01/2001 03:41:44 pm Please respond to Paul Werner [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] To: "[EMAIL PROTECTED]" [EMAIL PROTECTED] cc: Subject: Re: Subject: Multilink PPP with ISDN between Cisco 2504 and IBM 2210 A couple of thoughts. First, can I presume from your statement below that you are able to initiate a call from the Cisco router to the IBM 2210 (even if it is not multilink). According to IBM's web site, the 2210 does support PPP multilink. Nevertheless, like Animal Farm's pigs, some support for multilink may be more equal than others. I note on IBM's web page that there is not an explicit support for the RFCs that cover PPP (unlike Cisco's support). This may indicate compatability problems. http://www.networking.ibm.com/220/220over.html#s20 I think you have hit upon a key ingredient for interoperability, namely the negotiated maximum received reconstructed unit (MRRU). To quote from RFC 1990, here is paragraph 5.1.1 (excerpt): The Max-Receive-Reconstructed unit field is two octets, and specifies the maximum number of octets in the Information fields of reassembled packets. A system MUST be able to receive the full 1500 octet Information field of any reassembled PPP packet although it MAY attempt to negotiate a smaller, or larger value. The number 1500 here comes from the specification for the MRU LCP option in PPP; if this requirement is changed in a future version of RFC1661 the same rules will apply here. I think one key to minimizing the headache here will be to go to that MRRU which both hosts must be able to support. If you leave most of your interfaces at their default, a 1500 MRRU should be attainable. While looking to see what configurations commands might affect the MRRU, I noticed that it *appears* the 2210 does not have explicit support for PPP multilink, nor does it *appear* to have an LCP option to negotiate it. I hope I read the IBM configuration guide incorrectly. See chapter 28 (watch wrap): http://publib.boulder.ibm.com/cgi- bin/bookmgr/BOOKS/E2FB5004/CCONTENTS Additionally, this passage from IBM's marketing brochure did not inspire confidence that standards based (RFC 1990) multilink was used in the 2210: http://www.networking.ibm.com/220/220over.html Specifically, "Hardware and software for dependable routing solutions When equipped with one of the many available ISDN adapters, the 2210 Nways Multiprotocol Router and Nways MRS are dependable ISDN solutions. The Quad BRI adapter offers increased bandwidth and provides backup capability without requiring more expensive Primary Rate ISDN (PRI) service. With the Point-to-Point Protocol multilink tool?supplied with the 2210?bandwidth can be increased dynamically by grouping the B-channels. And for even greater bandwidth administration, rely on IBM's award-winning Bandwidth Reservation System (BRS) to manage traffic priority over Frame Relay, PPP and dial connections. I have never heard of multilink referred to as a "tool". HTH, Paul Werner Subject: Multilink PPP with ISDN between Cisco 2504 and IBM 2210 [Virus checked] Hello all, we must install Cisco Router in our IBM environment :)) . We solved a = lot of problems but we have one unsolved problem: The Cisco router must dialed-in to the IBM router with both ISDN B channels. The connection comes not up with the feature multilink. We te= sted a lot of possibilties: - - dial-in Cisco - Cisco with and without Multilink is o.k. - - dial-in IBM - IBM with and without Multilink is o.k. - - dial-in Cisco - IBM without Multilink (one ISDN B channel) is also = o.k. Only the multilink solution between Cisco an IBM doesn=B4t work. Have any of you an idea ?? We think that we have a problem with the LCP layer. For instance how ca= n I set the MRRU ? Software: c2500-is-l_120-8.bin and eptf09i.e11 See the files (configuration of the Cisco router and a debug of the IBM= ), please. (See attached file: Multilink.log)(See attached file: cisco25
ISDN Multilink PPP
Hey all, Does anyone know what is the maximum number of ISDN BRIs that can be bonded in a single Multilink PPP? Basically, I have a site that will require 12 BRIs worth of backup bandwidth and am wondering if that will work with a single Dialer interface running Multilink PPP. The BRIs will be dialing into an E1 PRI. I've done four and seen example for 5 but not one for 12 BRI interfaces. Thanks, Evan You -CCNA _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISDN BRI: multilink PPP and 4 ISDN channels!
Somebody, anybody, everybody, help! Has any configured an ISDN BRI line ,aggregating more than 1 physical interface (ie: 2 b channels)? I have been tasked with aggregating a 256k ISDN BRI link over two ISDN lines. Details: 2 ISDN2 (128k total) Lines available @ a and b ends, different telephone numbers on each line (say a1:222-1234, a2:222-5678, b1:333-1234, b2:333-5678) NM-4B-S/T module @ both ends ethernet network either side of wan link (say 192.168.1.0/24 and 192.168.2.0/24) I know I need to use multilink ppp, create a rotary group and add the i/faces into it, associate them with a dialer i/face etc... The bit I'm stuck on is... do I need two or four IP addresses to address the aggregated wan link? Or maybe two dialer maps with two different destination numbers pointing @ the same ip address. The end result is that I wish to 'bond' two physical interfaces to form a 256k link. Any help, 'specially in the next 24hours, would be much appreciated. It is for a client in Holland so the person who helps me the most will get a souvenier from holland! Sorry...won't be bringing anything illegal back! Hope to hear from somebody, anybody, everbody soon! PLEASE REPLY TO [EMAIL PROTECTED] and [EMAIL PROTECTED] Regards, Derek Lewinson, CCNA, MCSE Email: [EMAIL PROTECTED] Tel/Fax/Mobile (UK): 0044 7979 705446 winmail.dat
simple multilink ppp
Hi, Given a simple scenario for multilink ppp ( 2 links) : 2500 4500 Configuration (refer to : http://www.cisco.com/warp/public/131/7.html) Cisco 2500 : hostname 2500 ! username 4500 password 0 foobar ip subnet-zero multilink virtual-template 1 ! interface Loopback0 ip address 20.20.20.1 255.255.255.0 ! interface Virtual-Template1 ip unnumbered Loopback0 no ip mroute-cache ppp authentication chap ppp multilink ! interface Serial0 no ip address encapsulation ppp no fair-queue pulse-time 3 ppp multilink ! interface Serial1 no ip address encapsulation ppp no fair-queue pulse-time 3 ppp multilink ! router rip network 20.0.0.0 Cisco 4500: hostname 4500 ! username 2500 password 0 foobar ip subnet-zero multilink virtual-template 1 ! interface Loopback0 ip address 20.20.30.1 255.255.255.0 ! interface Virtual-Template1 ip unnumbered Loopback0 ppp authentication chap ppp multilink ! interface Serial1 no ip address encapsulation ppp no fair-queue clockrate 200 pulse-time 3 ppp multilink ! interface Serial2 no ip address encapsulation ppp no fair-queue clockrate 200 pulse-time 3 ppp multilink ! router rip network 20.0.0.0 ! no ip classless problem : 4500#sh int virtual-template 1 Virtual-Template1 is down, line protocol is down --- it should be up isn't it ? Hardware is Virtual Template interface Interface is unnumbered. Using address of Loopback0 (20.20.30.1) MTU 1500 bytes, BW 10 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set, keepalive set (10 sec) DTR is pulsed for 5 seconds on reset LCP Closed, multilink Closed - closed ? why ? Last input never, output never, output hang never Last clearing of "show interface" counters 03:33:01 Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 0 packets output, 0 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions 4500#sh ppp multilink Bundle 2500, 2 members, Master link is Virtual-Access1 0 lost fragments, 0 reordered, 0 unassigned, sequence 0x208/0x20A rcvd/sent 0 discarded, 0 lost received, 1/255 load Member Links: 2 (max not set, min not set) Serial2 Serial1 4500#sh interfaces virtual-access 1 Virtual-Access1 is up, line protocol is up Hardware is Virtual Access interface Interface is unnumbered. Using address of Loopback0 (20.20.30.1) MTU 1500 bytes, BW 11544 Kbit, DLY 10 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation PPP, loopback not set, keepalive set (10 sec) DTR is pulsed for 5 seconds on reset LCP Open, multilink Open Open: IPCP Last input 00:00:14, output never, output hang never Last clearing of "show interface" counters 02:42:55 Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 281 packets input, 21152 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort 284 packets output, 20796 bytes, 0 underruns 0 output errors, 0 collisions, 0 interface resets 0 output buffer failures, 0 output buffers swapped out 0 carrier transitions 4500# 3w1d: Se1 MLP: Forwarded to wrong interface -- ? 3w1d: Se2 MLP: Forwarded to wrong interface -- ? 2500#sh int virtual-template 1 Virtual-Template1 is down, line protocol is down - same as 4500 Hardware is Virtual Template interface Interface is unnumbered. Using address of Loopback0 (20.20.20.1) MTU 1500 bytes, BW 10 Kbit, DLY 10 usec, rely 255/255, load 1/255 Encapsulation PPP, loopback not set, keepalive set (10 sec) DTR is pulsed for 5 seconds on reset LCP Closed, multilink Closed --- same as 4500 Last input never, output never, output hang never Last clearing of "show interface" counters 03:37:18 Queueing strategy: fifo Output queue 0/40, 0 drops; input queue 0/75, 0 drops 5 minute input rate 0 bits/sec, 0 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 0 packets input, 0 bytes, 0 no buffer Received 0 broadcasts, 0 runts, 0 giants, 0 throttles 0 i
MultiLink PPP AS5300
Can multilink ppp run using standard channelized T-1's or is PRI T-1's required for setting a dial-in client up on a AS5300? ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
