RE: [nsp] EIGRP flapping

From: Florin Florian (florin@Cluj.RoEdu.Net)
Date: Thu Apr 11 2002 - 07:29:07 EDT


On Thu, 11 Apr 2002, Stephane Perez wrote:

> Hi Florian,
>
> Just a quick question, have you Keepalive enabled on only one side, because
> according to your logs, the EIGRP is bouncing because of the Serial
> interface does.

keepalive=20 enabled in both sides

fflorin

>
> Please do not hesitate to contact me for any further informations.
>
> regards
>
> ----------------------------------------------------------------------------
> ----------------------------------------------------------------------------
> ----------------
> PEREZ Stephane
> Carrier IP Specialist, Shasta GTS
> Nortel Networks
> ATS IP Core Infrastructure
> 25, allee Pierre Ziller
> 06560 Valbonne, FRANCE
> Phone: +33 4 92 96 18 05 Mail : mailto:perezs@nortelnetworks.com
> Fax : +33 4 92 96 16 68 www : http://www.nortelnetworks.com
> Esn : 296-1805 Intranet :
> http://hector.europe.nortel.com
> ICQ : 120356046
>
>
>
> -----Original Message-----
> From: Florin Florian [mailto:florin@Cluj.RoEdu.Net]
> Sent: Thursday, April 11, 2002 12:39 PM
> To: cisco-nsp@puck.nether.net
> Subject: [nsp] EIGRP flapping
>
>
>
> Hi ,
>
> My router communicate with another router over serial link, with EIGRP.
> The problem consist in EIGRP flapping and my backbone interface is up and
> down, frecvently...
>
> Apr 7 12:25:13 router 272: 01:07:26: %LINEPROTO-5-UPDOWN: Line protocol
> on Interface Serial0/1/0, changed state to down
> Apr 7 12:25:14 router 273: 01:07:27: %LINK-3-UPDOWN: Interface
> Serial0/1/0, changed state to up
> Apr 7 12:25:14 router 274: 01:07:28: %LINEPROTO-5-UPDOWN: Line protocol
> on Interface Serial0/1/0, changed state to up
> Apr 7 12:26:02 router 275: 01:08:15: %DUAL-5-NBRCHANGE: IP-EIGRP my AS:
> Neighbor x.x.x.x (Serial0/1/0) is down: peer restarted
> Apr 7 12:26:02 router 276: 01:08:15: %DUAL-5-NBRCHANGE: IP-EIGRP my AS:
> Neighbor x.x.x.x (Serial0/1/0) is up: new adjacency
> Apr 7 12:26:13 router 277: 01:08:26: %LINEPROTO-5-UPDOWN: Line protocol
> on Interface Serial0/1/0, changed state to down
> Apr 7 12:26:14 router 278: 01:08:27: %LINK-3-UPDOWN: Interface
> Serial0/1/0, changed state to up
> Apr 7 12:26:14 router 279: 01:08:28: %LINEPROTO-5-UPDOWN: Line protocol
> on Interface Serial0/1/0, changed state to up
> Apr 7 12:31:02 router 282: 01:13:15: %DUAL-5-NBRCHANGE: IP-EIGRP my AS:
> Neighbor x.x.x.x (Serial0/1/0) is down: peer restarted
> Apr 7 12:31:04 router 283: 01:13:16: %DUAL-5-NBRCHANGE: IP-EIGRP my AS:
> Neighbor x.x.x.x (Serial0/1/0) is up: new adjacency
> Apr 7 12:31:13 router 284: 01:13:26: %LINEPROTO-5-UPDOWN: Line protocol
> on Interface Serial0/1/0, changed state to down
>
> Last week I introduced a new VIP 4-80 controller in the router CISCO
> 7513(module 0) :
> 1 VIP4-80 RM7000 controller (1 FastEthernet)(4 Serial)(2 E1).
> Controller Memory Size: 128 MBytes DRAM, 65536 KBytes SRAM
> Fast-Ethernet PA, 1 ports, 100BaseTX-ISL
> Fast-Serial PA, 4 ports (attention:PA 4T not PA 4T+)
>
> This controllers not function properly with System Bootstrap, Version
> 11.1(8)CA1, and I proceed to install another bootstrap.
> Now I have a new bootloader version 12.2(1) and with work much better.
>
> IOS (tm) RSP Software (RSP-JK9SV-M), Version 12.2(3), RELEASE SOFTWARE
> (fc1)
> ROM: System Bootstrap, Version 11.1(8)CA1, EARLY DEPLOYMENT RELEASE
> SOFTWARE
>
> BOOTLDR: RSP Software (RSP-BOOT-M), Version 12.2(1), RELEASE SOFTWARE
> (fc2)
>
> I forget mention it, the backbone line is very full(bandwidth 6M) every
> day and night, and mrtg graph don't have Gauss inflection.
>
> router eigrp AS
> variance 4
> redistribute connected route-map match-xxx
> redistribute static route-map match-xxx
> passive-interface FastEthernet5/0/0
> network x.x.x.x
> maximum-paths 6
> default-metric 10000 100 255 1 1500
> no auto-summary
> eigrp log-neighbor-changes
>
> router bgp AS
> no synchronization
> no bgp fast-external-fallover
> bgp log-neighbor-changes
> bgp deterministic-med
> aggregate-address x.x.x.x
> ................
> redistribute connected route-map match-xxx
> redistribute static route-map match-xxx
> redistribute eigrp AS
> neighbor AS ....
> ............
>
> Why not function properly the backbone links with VIP 4-80 with the PA
> 4T and the PA - 1FE ISL???
> This PA 4T function with VIP 2-40
>
> Thanks in advance.
> fflorin
>
>
>



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