Cisco 7600-ES20-GE3CXL-RF - Ethernet Services 20G Line Card Switch Manual de usuario Pagina 69

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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
Please focus a entry of “2.2.2.2/32” from PE2.
PE-1
---
PE1-PRE2#
PE1-PRE2#sh ip /jointfilesconvert/422273/bgp ipv4 mdt all
BGP table version is 13, local router ID is 1.1.1.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
Route Distinguisher: 1:1 (default for vrf V1)
*> 1.1.1.1/32 0.0.0.0 0 ?
*>i2.2.2.2/32 2.2.2.2 0 100 0 ? <<<---- HERE
*>i3.3.3.3/32 3.3.3.3 0 100 0 ?
---
To trigger the issue, vrf configuration is remove on PE2.
You can see that PE2 sends withdraw message to PE1(1.1.1.1).
PE-2
---
PE2-PRE1#
PE2-PRE1#
PE2-PRE1#conf term
Enter configuration commands, one per line. End with CNTL/Z.
PE2-PRE1(config)#
PE2-PRE1(config)#no ip vrf V1
Tunnel interface was deleted. Partial configuration may reappear on reuse.
% IP addresses from all interfaces in VRF V1 have been removed
PE2-PRE1(config)#
PE2-PRE1(config)#
*Nov 9 12:29:35.447: %LINK-5-CHANGED: Interface Tunnel3, changed state to
administratively down
*Nov 9 12:29:36.467: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel3,
changed state to down
PE2-PRE1(config)#
PE2-PRE1(config)#end
PE2-PRE1#
PE2-PRE1#
*Nov 9 12:30:05.435: BGP(2): nettable_walker 2:1:1:2.2.2.2/32 no best path
*Nov 9 12:30:05.435: BGP(2): 1.1.1.1 send unreachable 2:1:1:2.2.2.2/32
*Nov 9 12:30:05.435: BGP(2): 1.1.1.1 send UPDATE 2:1:1:2.2.2.2/32 --
unreachable <<--- HERE
*Nov 9 12:30:05.435: BGP(2): updgrp 1 - 1.1.1.1 enqueued 1 updates,
average/maximum size (bytes) 45/45
PE2-PRE1#
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