LMS v2.1 [7:57845]
I am currently configuring an LMS to manage a small number of 2950 and 3550 switches. All appears ok except for one issue. When i pull a cable and bring a port down the GUI takes up to 5 minutes to update. Traps are sent and the polling period is down to 30 secs but the topology diagram still does not update immediately. Is there any way to have instant notification of this (or any other) event? Thanks in advance, Filo. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=57845t=57845 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: PIM kills OSPF [7:29336]
Peter, I have never seen this with PIM, can you provide mem and cpu utilisation both with and without PIM running? RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29462t=29336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: PIM kills OSPF [7:29336]
Peter, As this problem is resolved by removing either PIM or HSRP, it suggests it may be a resource problem rather than any specific process or ptotocol. When the OSPF adjacency expires what is the state of HSRP and PIM, i.e do they still maintain their neighbour relationships? Also what happens if you do not mix IOS versions i.e. run either 12.1 or 12.2 on both routers? Regards, RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29483t=29336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Subject: Re: PIM kills OSPF [7:29336]
Paul, Peter is running sparse-dense so any mcast group without a configure RP will be handled using dense mode. Also we have I dentified that not only PIM is involved hear, OSPF and HSRP also fails when all three are configured. Peter, Assuming the routers have enough resource, check by looking at CPU utilisation and mem allocation ewhen problem occurs, I think you should log this on CCO and see what Cisco say. I have seen something a little similar on a 6509 running 12.2 IOS. It was also running HSRP , PIM Sparse-dense and OSPF, although the VLANs running HSRP were passive OSPF interfaces. The OSPF adjacencies just timed out but it appeared to still be sending and receiving hello's. It only happened once during a 3 month acceptance test, we were unable to replicate it so took it no further. Please post any resolution, RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29543t=29336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Mask in L3 Packet [7:29182]
The sending host uses its own address and mask to decide whether the destination host is on the local subnet or not. If not then the packet is forwarded to the default gateway (unless the host is running dynamic routing). When the packet reaches the router, the router checks the destination IP against it's routing table and forwards it accordingly. I have mist a stage or two out and not followed it through to delivery or explored failure scenarious but I hope answered your question Regards, RB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29187t=29182 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP design [7:28982]
The load balacing of the VLANs is recommended best practice, however the RSM does not have wire speed access to the backplane, it has two I/O ports each one 200Mbps FDX(from memory). By default all odd VLANs are assigned to the first port and all even VLANs to the second. So if you have all even VLANs supported on one switch, that RSM will only be using half of it's throughput capability. You can see the VLAN allocation by issuing the show cont c5ip command. After some initial queue stuff each VLAN is listed along with the port it is assigned to. To maximise the RSM capabilities you therfore have two choices 1. Split the odd and even VLANs over the two RSMs. 2. Reassign half of the VLANs in each RSM to the other I/O. This of course is only an issue of you are likely to exceed 200Mbps throughput. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29052t=28982 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: about multicast address! [7:29057]
An IP m'cast address is 32 bits long (as with any IP address), the first for bits are 0x1110 leaving 28 bits. (Still with me :)) Any m'cast ethernet borne frame has a 48 bit MAC (as do all ethernet frames). A 25 bit prefix is assigned leaving 23 bits. As 28 won't go into 23 there must be some duplication, there is a short fall of five bits and 2 to the 5 is 32. Hence and one m'cast MAC represents 32 IP addresses. For instance 224.1.1.1 224.128.1.1 225.1.1.1 225.128.1.1 etc etc 238.1.1.1 238.128.1.1 239.1.1.1 239.128.1.1 are all allocated a MAC of 0100.5e01.0101. Hope this is explained OK. RB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29061t=29057 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP design [7:28982]
Mike, DMA channels are indeed the I/O's ports I refered to, but I couldn't remember what they were called (each time I learn something new , something old falls out the other end). I came across this about three years ago while setting up a multicast network and experiencing throughput problems, IOS was 112-13_P(1). It looks like Cisco have changed the allocation method, what IOS are you running? RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29065t=28982 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP design [7:28982]
If you want to load share the VLANs and provide resilience using HSRP both RSMs need to have an interface configured in every VLAN. Also I would not use VLAN 1 for data as this VLAN cannot be removed from a trunk and so propergates everywhere. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29094t=28982 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: MAC Cookie problems with RSP7000 in a 7000 router [7:29098]
It looks like IOS has randomly generated a MAC of .5e03.6100 which suggests to me it has found a work around itself. This should be fine for a home lab. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29103t=29098 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: telnet session timeout [7:29028]
I've re-read the original message and I am now not sure what you have done. Just to clarify, this command should be executed on the router you are telneted too, not the one you've telneted from. Sorry of this is obvious but I am not sure by the question. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=29104t=29028 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
forum update ?? [7:28894]
Haven't seen a post for 24 hrs. Are we still online ?? RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28894t=28894 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Serial links [7:28270]
Michael Williams wrote: For a device (or interface) operating in full-duplex, wouldn't total throughput = total full-duplex throughput?!?!??! I.E. Isn't it a correct statement to say: FastEthernet is capable of a total throughput of 200Mbps? I believe it is. Mike W. Mike, If you trully beleive this then I fear your are destined for that dark place which is marketing. Ok it is not incorrect but does not give the full picture. Getting back to the original question I beleive it is possible to run 2Mbps full duplex across a serial link. The restriction you quote I think may be something to do with the ISP SLA. OK two for and two against, who will swing the vote. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28390t=28270 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Serial links [7:28270]
Mike, I have three final comments then I think enough has been said. 1. Ethernet has always been a half duplex standard until recent times, FDX operation is always quoted therefore to make the distinction from the default. 2. Serial lines, however, since the late seventies-early eighties have been by default a full duplex offering. Therefore FDX is assumed unless otherwise stated. 3. My comments were not ment to offend but supposed to be funny. Humour on a forum such as this is often missread and I should have learnt my leason along time ago but I just can't help it. Charles do you have your answer??? RB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28406t=28270 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT - How to get MAC address of remote device when [7:28408]
Robert, Look in the arp cache of the remote devices default gateway. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28411t=28408 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: enquiry on 5505 switch optical fibre port [7:28258]
Sim, To show the status of the ports you need to use the show port command. This can be issued on it'e own and will list all ports in the chassis; or with a module number i.e. show po 2 to show all ports on that slot; or with a single port number sh po 2/1. As far as I am aware Gigports on supervisor modules are the same as any other in that the ports on the stanby can be used but I have not checked the 5.1(1) release notes. A quick check would be to connect them back to back i.e. 2/1 to 2/2. As far as adding more supervisors, two things would put me off doing this. 1. This is the most expensive way of adding more ports and I'm not a shareholder. 2. You don't have anymore slots available in the chassis. Hope this helps. Filo. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28275t=28258 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Serial links [7:28270]
Charles, Serial lines are full duplex, actual line speed is 2048Kbps. RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28277t=28270 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Serial links [7:28270]
Michael, Is this so?? If so then it is not full-duplex but half-duplex. So why then do cisco say this: The NM-4T serial network module has four synchronous serial interfaces. The network module supports a total full-duplex throughput of 8 megabits per second (Mbps), on this data sheet: http://www.cisco.com/warp/public/cc/pd/rt/3600/prodlit/seral_ds.htm RB. Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28283t=28270 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Serial links [7:28270]
So should the data sheet say total throughput and not total full-duplex throughput?? RB Message Posted at: http://www.groupstudy.com/form/read.php?f=7i=28286t=28270 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
