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Caveats for Cisco IOS Release 12.2(33)SRD through 12.2(33)SRD8
OL-10394-05 Rev. R0
PE2-PRE1#
PE2-PRE1#sh ip vrf
PE2-PRE1#
---
The MDT entry(2.2.2.2/32) is not deleted even if PE1 indeed receives withdraw message from PE2.
“clear ip /jointfilesconvert/422273/bgp *” would be needed to purge the MDT entry.
PE-1
---
PE1-PRE2#
*Nov 9 12:29:34.323: BGP:from:3 to:4 update format 1:1:3.3.3.3/0 MDT grp
239.0.0.1 pfxptr->masklen 96
*Nov 9 12:29:34.323: BGP:from:3 to:4 update format 1:1:1.1.1.1/0 MDT grp
239.0.0.1 pfxptr->masklen 96
*Nov 9 12:29:34.323: BGP(4): 2.2.2.2 send UPDATE (format) 2:1:1:1.1.1.1/32,
next 1.1.1.1, label 0, metric 0, path Local
*Nov 9 12:29:34.323: BGP:from:3 to:4 update format 1:1:2.2.2.2/0 MDT grp
239.0.0.1 pfxptr->masklen 96
*Nov 9 12:29:34.323: BGP(4): updgrp 1 - 2.2.2.2 updates replicated for neighbors:
*Nov 9 12:30:05.799: BGP(4): 2.2.2.2 rcv UPDATE about 1:1:2.2.2.2/64 --
withdrawn, label 3 <<--- HERE
*Nov 9 12:30:05.799: BGP: 2.2.2.2 Modifying prefix 1:1:2.2.2.2/64 from 4 -> 3
address
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 ?
PE1-PRE2#
PE1-PRE2#
PE1-PRE2#clear ip /jointfilesconvert/422273/bgp *
PE1-PRE2#
*Nov 9 12:31:22.043: %BGP-5-ADJCHANGE: neighbor 2.2.2.2 Down User reset
*Nov 9 12:31:22.043: %BGP_SESSION-5-ADJCHANGE: neighbor 2.2.2.2 VPNv4 Unicast
topology base removed from session User reset
*Nov 9 12:31:22.043: %BGP_SESSION-5-ADJCHANGE: neighbor 2.2.2.2 IPv4 MDT
topology base removed from session User reset
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