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New Member

Cisco ASR9006 bgp send full table problem

Hi all, Thats me again!

I have a simple lab and I have couple of cisco 7206 vxr g2 and one cisco asr 9006. I can try to bgp configration for asr 9006 to vxr 7206.

I want to receive full table for the isp. after that I want to send my bgp peer this full table. Configrations are below.

ASR9006

!

route-policy Accept-All

  pass

  end-policy

!

router bgp 100

bgp router-id 192.168.96.92

address-family ipv4 unicast

  network 192.168.103.0/24

!

neighbor 192.168.96.1

  remote-as 100

  update-source MgmtEth0/RSP0/CPU0/0

  address-family ipv4 unicast

   route-policy Accept-All in

   route-policy Accept-All out

  !

!

neighbor 192.168.96.4

  remote-as 100

  update-source MgmtEth0/RSP0/CPU0/0

  address-family ipv4 unicast

   route-policy Accept-All in

   route-policy Accept-All out

  !

!

!

RP/0/RSP1/CPU0:#sh bgp summary

Mon Jun 25 11:44:19.645 GMT

BGP router identifier 192.168.96.92, local AS number 100

BGP generic scan interval 60 secs

BGP table state: Active

Table ID: 0xe0000000   RD version: 184

BGP main routing table version 184

BGP scan interval 60 secs

BGP is operating in STANDALONE mode.

Process       RcvTblVer   bRIB/RIB   LabelVer  ImportVer  SendTblVer  StandbyVer

Speaker             184        184        184        184         184         184

Neighbor        Spk    AS MsgRcvd MsgSent   TblVer  InQ OutQ  Up/Down  St/PfxRcd

192.168.96.1      0 100  156761      26      184    0    0 00:10:50     427521

192.168.96.4      0 100      93      91      184    0    0 00:11:31          0

RP/0/RSP1/CPU0:#

RP/0/RSP1/CPU0:#sh bgp neighbor 192.168.96.4 advertised-routes

Mon Jun 25 11:44:59.487 GMT

Network            Next Hop        From            AS Path

192.168.103.0/24   192.168.96.92   Local           i

Processed 1 prefixes, 1 paths

RP/0/RSP1/CPU0:#

I can receive 192.168.96.1 for the full table.

Cisco 7206 VXR G2_2

!

router bgp 100

no synchronization

bgp router-id 192.168.96.4

bgp log-neighbor-changes

neighbor 192.168.96.92 remote-as 100

neighbor 192.168.96.92 update-source GigabitEthernet0/1.1

no auto-summary

!

7206VXR_G2_2#sh ip bgp summary

BGP router identifier 192.168.96.4, local AS number 100

BGP table version is 12, main routing table version 12

1 network entries using 121 bytes of memory

1 path entries using 52 bytes of memory

2/1 BGP path/bestpath attribute entries using 152 bytes of memory

0 BGP route-map cache entries using 0 bytes of memory

0 BGP filter-list cache entries using 0 bytes of memory

BGP using 325 total bytes of memory

BGP activity 6/5 prefixes, 9/8 paths, scan interval 60 secs

Neighbor        V    AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd

192.168.96.92   4 100      14      15       12    0    0 00:10:55        1

7206VXR_G2_2#

7206VXR_G2_2#sh ip bgp

BGP table version is 12, local router ID is 192.168.96.4

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

*>i192.168.103.0    192.168.96.92            0    100      0 i

7206VXR_G2_2#

I can advertised to 192.168.103.0/24 networks. I can receive full table vxr_7206_1. but I don't advertise to full table to vxr_7206_2.

I read the cisco configrations guide for asr 9000 series alot of times. But I didn't see subject or example "how to send full bgp table".

Please advice me? How can I do this?

Everyone's tags (5)
1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Cisco ASR9006 bgp send full table problem

Hello Umit,

If I properly understand you want to test your connection towards ISP and BGP route exchange. I would assume your ISP uses different BGP AS compare to yours.  In this current setup I see ASR9k and 7200 have the same BGP AS meaning this is iBGP. In this case we have to have full mesh between iBGP peers as routes are not sent back to other iBGP peers.

I don’t know which exactly 7200 emulates ISP, but we need to configure eBGP between ASR9k and that 7200 (different BGP AS).

Note, you use “update-source MgmtEth0/RSP0/CPU0/0”. That is not recommended as there is no routing between management and other forwarding interfaces. Configure a loopback and use as an update-source.

Regards,

/A

2 REPLIES
Cisco Employee

Cisco ASR9006 bgp send full table problem

Hello Umit,

If I properly understand you want to test your connection towards ISP and BGP route exchange. I would assume your ISP uses different BGP AS compare to yours.  In this current setup I see ASR9k and 7200 have the same BGP AS meaning this is iBGP. In this case we have to have full mesh between iBGP peers as routes are not sent back to other iBGP peers.

I don’t know which exactly 7200 emulates ISP, but we need to configure eBGP between ASR9k and that 7200 (different BGP AS).

Note, you use “update-source MgmtEth0/RSP0/CPU0/0”. That is not recommended as there is no routing between management and other forwarding interfaces. Configure a loopback and use as an update-source.

Regards,

/A

New Member

Cisco ASR9006 bgp send full table problem

Alexei you are right. My false.

I changed to local as number for the isps. And this problem fixed. I can receive route table.

Thank you for your kind support.

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