hi
I have set up a lab as per the "Internet Routing Architectures - Second
Edition sample network on Pg 313 and I have encountered a problem with
iBGP. IT does not seem to want to record the metrics from the iBGP in
the BGP tables. His network is using Ethernet interfaces and I am using
Frame Relay PVCs but it shouldn't matter, should it?
My configs
RTA IOS 12.0(7)
router ospf 10
passive-interface Serial0.102
network 172.16.1.1 0.0.0.0 area 0
network 172.16.2.254 0.0.0.0 area 0
network 172.16.20.2 0.0.0.0 area 0
!
router bgp 3
no synchronization
network 172.16.1.0 mask 255.255.255.0
network 172.16.20.0 mask 255.255.255.0
network 172.16.220.0 mask 255.255.255.0
neighbor 172.16.1.2 remote-as 3
neighbor 172.16.1.2 update-source Loopback2
neighbor 172.16.20.1 remote-as 1
neighbor 172.16.20.1 filter-list 10 out
no auto-summary
RTF 11.1(24) (sorry, it's the best image I can fit on this old 2503)
router ospf 10
network 172.16.1.2 0.0.0.0 area 0
!
router bgp 3
no synchronization
network 172.16.65.0 mask 255.255.255.0
network 172.16.10.0 mask 255.255.255.0
network 172.16.1.0 mask 255.255.255.0
neighbor 172.16.2.254 remote-as 3
neighbor 172.16.2.254 next-hop-self
neighbor 192.68.5.2 remote-as 2
neighbor 192.68.5.2 filter-list 10 out
no auto-summary
The BGP tables and a close up look on a distant network are shown below
RTA(3810)#sh ip bgp
BGP table version is 38, local router ID is 192.168.110.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
* i172.16.1.0/24 172.16.1.2 0 100 0 i
*> 0.0.0.0 0 32768 i
*>i172.16.10.0/24 172.16.1.2 0 100 0 i
*> 172.16.20.0/24 0.0.0.0 0 32768 i
*>i172.16.65.0/24 172.16.1.2 0 100 0 i
*> 172.16.220.0/24 0.0.0.0 0 32768 i
*>i192.68.10.0 172.16.1.2 0 100 0 2 i
* 172.16.20.1 0 1 2 i
*> 192.68.11.0 172.16.20.1 0 0 1 i
RTA(3810)#
RTA(3810)#sh ip bgp 172.16.65.0
BGP routing table entry for 172.16.65.0/24, version 37
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Flag: 0x208
Advertised to non peer-group peers:
172.16.20.1
Local
172.16.1.2 from 172.16.1.2 (192.168.150.1)
Origin IGP, metric 0, localpref 100, valid, internal, best
RTA(3810)#
RTF(2503)#sh ip bgp
BGP table version is 73, local router ID is 192.168.150.1
Status codes: s suppressed, d damped, h history, * valid, > best, i -
internal
Origin codes: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
*> 172.16.1.0/24 0.0.0.0 0 32768 i
* i 172.16.2.254 0 100 0 i
*> 172.16.10.0/24 0.0.0.0 0 32768 i
*>i172.16.20.0/24 172.16.2.254 0 100 0 i
*> 172.16.65.0/24 0.0.0.0 0 32768 i
*>i172.16.220.0/24 172.16.2.254 0 100 0 i
*> 192.68.10.0 192.68.5.2 0 0 2 i
* 192.68.11.0 192.68.5.2 0 2 1 i
*>i 172.16.20.1 0 100 0 1 i
RTF(2503)#sh ip bgp 172.16.220.0
BGP routing table entry for 172.16.220.0/24, version 72
Paths: (1 available, best #1, advertised over EBGP)
Local
172.16.2.254 (metric 1539) from 172.16.2.254 (192.168.110.1)
Origin IGP, metric 0, localpref 100, valid, internal, best
RTF(2503)#
All the internal metrics are zero. In the IRA book it clearly has
passed the metrics. What's happening. I can't find anything on the
cisco site
Thanks
Ian
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