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Found 8 results

  1. Cisco IOS vs IOS-XE vs IOS-XR - 2015 Edition [hide][Hidden Content]] Key: !jhNqgW_kWsKc_m34xd0z1gAoaalbhDfRSytF9SqrOLY
  2. Has anyone checked out the fairly new book from CiscoPress, "IP Routing on Cisco IOS, IOS XE, and IOS XR: An Essential Guide to Understanding and Implementing IP Routing Protocols (Networking Technology)?" It looks really good as it ties in the different IOS versions that Cisco now has. I'd like to read it to really learn some of the details about IOS-XE and to get acquainted with IOS-XR. We have ASR9k and CRS where I work, but I do not work on that team. Anyway, could someone share it if they have it or tell what they think about it? I might even plop down the money for it if I have to.
  3. Ejikman

    PIM BSR Bug

    Guys, I ran into a crazy PIM BSR issue. The simple task of setting up R7 and R8 as RP/BSR for AS 9 and AS 1009 took almost 2hrs to fix. Thank God it was not the real lab... This is a task i've done countless times on my labbing without any isssue... I did the basic configs on R8 and R7 as below access-list 90 permit 239.255.0.0 0.0.255.255 ip pim bsr-candidate Loopback0 0 ip pim rp-candidate Loopback0 group-list 90 Now, when i went into AS 1009, they could all see R8 as the RP via BSR. for example R10#sh ip pim rp Group: 239.255.0.9, RP: 9.9.0.8, v2, uptime 00:10:37, expires 00:02:04 Group: 239.255.0.10, RP: 9.9.0.8, v2, uptime 00:10:37, expires 00:02:04 I went into the devices in AS 9, i could not see the RP. I checked all the configs, everything looked good. Finally i did a reload of R7.... Still no RP in AS 9. I finally turned on PIM debug on R2, R6. i did not see any BSR messages arriving R6. On R2 (XR) i could see the following (its quite a noisy debug, so i had delete some unneeded data) Received BSR message pkt len 36 from 9.9.27.7 (Gi0/1/0/0.27) for 9.9.0.7, priority 0 hash mask length 0 RP/0/5/CPU0:Apr 30 13:38:40.985 : pim[367]: [8] default: state = No-info stored - (9.9.0.3, 1) new - (9.9.0.7, 0) I could not figure this out, so i turned to google searching for the last message. What i found out was that apparently the XR does not flush out the old BSR information even though the old BSR is no longer active, it apparently keeps the stale info. The way to fix this is by increasing your BSR priority as below ip pim bsr-candidate Loopback0 0 100 or do a reload of the XR. After i increased the priority i could see the RP/BSR in AS9 routers. R6#sh ip pim rp mapping PIM Group-to-RP Mappings Group(s) 224.0.0.0/4 RP 9.9.0.7 (?), v2 Info source: 9.9.0.7 (?), via bootstrap, priority 0, holdtime 150 Uptime: 00:25:21, expires: 00:02:06 R6#sh ip pim bs R6#sh ip pim bsr-router PIMv2 Bootstrap information BSR address: 9.9.0.7 (?) Uptime: 00:25:33, BSR Priority: 100, Hash mask length: 0 Expires: 00:01:36 R6# Someone posted about this on the INE blog. [Hidden Content] One other thing i learnt today is that if the direct neighbours to a BSR/RP router do not accept the BSR, they will NOT forward the BSR messages upstream. This explains why i did not see any RP/BSR debug info on R6 I dont know if this is a bug or what, but hopefully we wont run into it in the lab. Happy labbing !!!
  4. Hi Guys, I am currently running UNL in google cloud. I have the following topology and configuration XRV1 0/0/0/1 --------------0/0/0/1 XRV2 xrv1 int gi0/0/01 ipv4 address 192.168.1.1/24 no shutdown xrv2 int gi0/0/01 ipv4 address 192.168.1.2/24 no shutdown I am unable to ping both sides. Below is the debug ipv4 packet output RP/0/0/CPU0:Aug 8 17:15:56.088 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.2, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:15:56.088 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:15:56.088 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.2, pak: 0xb0c07d7b, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:15:59.808 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:15:59.808 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.1, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:16:01.828 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:16:01.828 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.1, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:16:03.848 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:16:03.848 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.1, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:16:05.868 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:16:05.868 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.1, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000 RP/0/0/CPU0:Aug 8 17:16:07.887 : ipv4_io[267]: Sending to netio RP/0/0/CPU0:Aug 8 17:16:07.887 : ipv4_io[267]: : source 192.168.1.2 (local) dest 192.168.1.1, pak: 0xb0c07f47, vrf 0x60000000, tbl 0xe0000000
  5. Hi All, Could anyone provide the latest SMU's and Service Packs for IOS-XR 5.3.4? I couldn't find these anywhere else. asr9k-px-5.3.4.k9-sp10.tar (717.08 MB) - [Hidden Content] asr9k-px-5.3.4.CSCvo03672.tar (0.58 MB) - [Hidden Content] Thanks!
  6. Hello Everyone, Is anyone interested in studying together for this exam? I am not getting enough time due to work. So the topic is on, lets do it.
  7. Hi guys, Does anyone have the 3 books recommended by Cisco as training for CCNP-SP in Kindle format ? I'm talking about: 1) Next-Generation Network Services by Robert Wood, 2005 2) Traffic Engineering with MPLS by Eric Osborne, Ajay Simha, 2002 3) Cisco IOS XR Fundamentals by Mobeen Tahir, Mark Ghattas, Dawit Birhanu, Syed Natif Nawaz, 2009 I've already google a bit through the forum but couldn't find any...so I'm just shooting a wild question. Thanks in advance:)
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