Challenging !
I been it on it since 4am. Still can't figure that one out ... >From Cisco: "After the token is claimed and changed to an information frame, only stations with priority higher than the trasmitting station can reserve the token for the next pass around the network. When the next token is generated, it includes the highest priority of the reserving station. Stations that raise a token's priority level must reinstate the previous lower priority level after their transmission is complete" CASE SCENARIO: I have 3 stations: A , B, and C Their resective priorities are 1 , 4, and 5. Station X Y Z have priority 0 Station A grabs the token (the priority at the time was 0) and and put data on it. While it goes around the ring, station B reserves the token for itself. When the token comes back to station A (we assume X was the destination), A creates a new token with priority 4 and no reservation set. QUESTIONS: Question: Is the last statement of my case scenario correct or is it the other way arround? (A creates a new token ring with the previous priority: 0 and set the reservation to 4). DIAGRAM: The ring A---W---BCX- |Z---Y-| _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Challenging !
According to the first paragraph it should set the priority back to 0. - Original Message - From: Pierre-Alex GUANEL <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, January 12, 2001 10:48 AM Subject: Challenging ! > > I been it on it since 4am. Still can't figure that one out ... > > >From Cisco: > > "After the token is claimed and changed to an information frame, only stations with priority higher than the trasmitting station can reserve the token for the next pass around the network. When the next token is generated, it includes the highest priority of the reserving station. Stations that raise a token's priority level must reinstate the previous lower priority level after their transmission is complete" > > CASE SCENARIO: > > I have 3 stations: A , B, and C Their resective priorities are 1 , 4, and 5. Station X Y Z have priority 0 > Station A grabs the token (the priority at the time was 0) and and put data on it. While it goes around the ring, station B reserves the token for itself. When the token comes back to station A (we assume X was the destination), A creates a new token with priority 4 and no reservation set. > > QUESTIONS: > > Question: Is the last statement of my case scenario correct or is it the other way arround? (A creates a new token ring with the previous priority: 0 and set the reservation to 4). > > DIAGRAM: The ring > > A---W---BCX- > |Z---Y-| > > _ > 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]
Anybody have any challenging Labs???
Hey Group, I was just wondering if anybody had any links to, or any examples of labs to work on for the CCNP or CCIE level of training. A friend and I are already working on the "CCIE All-In-One Study Guide," but we were just wondering how we could get more and if any of you had them. Any help with this will be appreciated. Thanks in advance, Mark Zabludovsky ~ CCNA [EMAIL PROTECTED] If the automobile had followed the same development as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year killing everyone inside. ~Robert Cringely, InfoWorld~ ___ 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]
ISDN ....Challenging Problem! [7:46500]
Posted to Cisco Newsgroup at 3:30 on June 13, 2002 Router A and Router B are connected to an Atlas 550 via BRI interfaces Router A ATLAS --- ROUTER B Both router are configured with DDR Dialer maps so that Router A can call router B or vice-versa (basic stuff). When Router A is called by Router B, Router A answers normally and the link goes up, but then (surprisingly), Router A attempts to initiate a connection to Router B . This connection fails because I only configured the phone number for one channel (Isdn error 17: User is busy). Is this calling of Router A a normal behavior? (I don't think so!) I fixed the problem by simpling removing the phone number from the map statement of Router A. I am posting here the debug before and after I removed the phone number on A. The debug where captured on Router A. I have spent the day on the apparently trivial question: why is Router A calling Router B when I have no call back of any sort. Still no light ... Want to step up to the challenge? :) Before: 00:32:45: ISDN BR0/0: RX on B1 at 64 Kb/s 00:32:45: ISDN BR0/0: Event: Accepting the call id 0xD 00:32:193273528320: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 01:51:113824615516: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up 00:32:45: ISDN BR0/0: TX -> CALL_PROC pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: TX -> CONNECT pd = 8 callref = 0x84 00:32:45: Channel ID i = 0x89 00:32:45: ISDN BR0/0: RX SETUP pd = 8 callref = 0x09 00:32:47: Bearer Capability i = 0x8890 00:32:47: Channel ID i = 0x83 00:32:47: Keypad Facility i = '555' 00:32:47: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x09 00:32:47: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0A 00:32:49: Bearer Capability i = 0x8890 00:32:49: Channel ID i = 0x83 00:32:49: Keypad Facility i = '555' 00:32:49: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0A 00:32:49: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0B 00:32:51: Bearer Capability i = 0x8890 00:32:51: Channel ID i = 0x83 00:32:51: Keypad Facility i = '555' 00:32:51: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3 00:32:51: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0B 00:32:51: ISDN BR0/0: RX SETUP pd = 8 callref = 0x0C 00:32:53: Bearer Capability i = 0x8890 00:32:53: Channel ID i = 0x83 00:32:53: Keypad Facility i = '555' 00:32:53: ISDN BR0/0: RX RELEASE pd = 8 callref = 0x0C 00:32:53: ISDN BR0/0: RX on B1 at 64 Kb/s 00:41:53: ISDN BR0/0: Event: Accepting the call id 0x10 00:41:227633266688: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up 02:00:14602128: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 00:41:53: ISDN BR0/0: TX -> CALL_PROC pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: TX -> CONNECT pd = 8 callref = 0x85 00:41:53: Channel ID i = 0x89 00:41:53: ISDN BR0/0: RX <- CONNECT_ACK pd = 8 callref = 0x05.. 02:00:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed state to up 00:41:56: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed state to up. 02:00:40: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234 isdn1 00:41:59: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to isdn3.. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=46500&t=46500 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Anybody have any challenging Labs???
www.fatkid.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, July 11, 2000 7:37 PM To: [EMAIL PROTECTED] Subject: Anybody have any challenging Labs??? Hey Group, I was just wondering if anybody had any links to, or any examples of labs to work on for the CCNP or CCIE level of training. A friend and I are already working on the "CCIE All-In-One Study Guide," but we were just wondering how we could get more and if any of you had them. Any help with this will be appreciated. Thanks in advance, Mark Zabludovsky ~ CCNA [EMAIL PROTECTED] If the automobile had followed the same development as the computer, a Rolls-Royce would today cost $100, get a million miles per gallon, and explode once a year killing everyone inside. ~Robert Cringely, InfoWorld~ ___ 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] ___ 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]
Challenging issue - can you help? csu/dsu service-module t1 lbo
I am having trouble on a 2621 with a WIC-DSU-T1. The 2621 is connected to a 1600 with the same WIC via T1 point-to point. When we move any substantial amount of data accross the circuit we observe line code errors. We observed these by doing a show service-module on the 2621. The 2621 is connected to the NIU through a jack and 180 foot 25 pair cable. The 25 pair cable is terminated on both ends with 66 blocks. The telco was already out and tested with a TBird at the jack and of course they said it tested fine. Here is the interesting part - we also have a 3640 with a network module that was having the same problem. We used a service-module t1 lbo -15db and it corrected the line code errors. The same command did not correct the problem on the 2621. Does anybody have a clue? Regards, Sam CCNA/CCDA _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
