Question regarding BGP route exchange
Ok have you actually told bgp to advertise any router? With the network statement under router bgp??
On Sun, Nov 16, 2008 at 1:46 PM, Saketh R wrote:
> I have nothing in my sh ip bgp….It does not show any bgp routes.This is > just a very basic BGP configuration that I am making…Any idea on how to > troublehoot this ?? > > Thanks!! > > On Sat, Nov 15, 2008 at 5:41 PM, Hyunseog Ryu wrote: > > > Do you have anything in BGP routing table ? > > > > “sh ip bgp ” command itself shows any BGP routes? > > > > > > Saketh R wrote: > > > Hi Hyunseog/Tolulope, > > > > > > Thanks for your reply.To answer your questions….The neighbor state > > > is Established.There is no updates being sent on by either routers and > > > also I have configured BGP no sync . > > > > > > I am attaching the show neighbor output… > > > > > > R1#sh ip bgp neighbors 155.1.146.4 > > > BGP neighbor is 155.1.146.4 , remote AS 3, > > > external link > > > BGP version 4, remote router ID 155.1.146.4 > > > BGP state = Established, up for 02:41:48 > > > Last read 00:00:48, last write 00:00:48, hold time is 180, keepalive > > > interval is 60 seconds > > > Neighbor capabilities: > > > Route refresh: advertised and received(old & new) > > > Address family IPv4 Unicast: advertised and received > > > Message statistics: > > > InQ depth is 0 > > > OutQ depth is 0 > > > Sent Rcvd > > > Opens: 3 3 > > > Notifications: 0 0 > > > Updates: 0 0 > > > Keepalives: 182 182 > > > Route Refresh: 0 0 > > > Total: 185 185 > > > Default minimum time between advertisement runs is 30 seconds > > > > > > For address family: IPv4 Unicast > > > BGP table version 1, neighbor version 1/0 > > > Output queue size : 0 > > > Output queue size : 0 > > > Index 2, Offset 0, Mask 0×4 > > > 2 update-group member > > > Sent Rcvd > > > Prefix activity: —- —- > > > Prefixes Current: 0 0 > > > Prefixes Total: 0 0 > > > Implicit Withdraw: 0 0 > > > Explicit Withdraw: 0 0 > > > Used as bestpath: n/a 0 > > > Used as multipath: n/a 0 > > > > > > Outbound Inbound > > > Local Policy Denied Prefixes: ——– ——- > > > Total: 0 0 > > > Number of NLRIs in the update sent: max 0, min 0 > > > > > > Connections established 3; dropped 2 > > > *Last reset 02:46:01, due to Peer closed the sessionConnection is ECN > > > Disabled, Mininum incoming TTL 0, Outgoing TTL 1* > > > Local host: 155.1.146.1 , Local port: 179 > > > Foreign host: 155.1.146.4 , Foreign port: 46858 > > > > > > Enqueued packets for retransmit: 0, input: 0 mis-ordered: 0 (0 bytes) > > > > > > Event Timers (current time is 0×1FAB0480): > > > Timer Starts Wakeups Next > > > Retrans 169 0 0×0 > > > TimeWait 0 0 0×0 > > > AckHold 169 165 0×0 > > > SendWnd 0 0 0×0 > > > KeepAlive 0 0 0×0 > > > GiveUp 0 0 0×0 > > > PmtuAger 0 0 0×0 > > > DeadWait 0 0 0×0 > > > > > > Thanks in advance!! > > > > > > Madhu > > > > > > > > > > > > On Sat, Nov 15, 2008 at 2:52 PM, Hyunseog Ryu > > > wrote: > > > > > > Did you configure “no sync” under “router bgp” configuration? > > > > > > > > > > > > Saketh R wrote: > > > > Hi All, > > > > I have a very simple scenario. > > > > > > > > > > > > > > R2——–R3—–R1—————————————————–R4 > > > > AS-2 > > > > AS-3 > > > > 155.1.146.1 155.1.146.4 > > > > > > > > > I see that the BGP connections are established between the two > > > routers. > > > > > > > > *BGP neighbor is 155.1.146.4 , remote AS 3, > > > external link > > > > BGP version 4, remote router ID 155.1.146.4 > > > > BGP state = Established, up for 00:38:01 > > > > Last read 00:00:01, last write 00:00:01, hold time is 180, > > keepalive > > > > interval is 60 seconds > > > > * > > > > ** > > > > But there is no routes that are being adverised by either R4 or > > > R1. I have a > > > > couple of routers connnected behind running BGP in AS2.All the > > > routers have > > > > connection established but they don’t advertise the routes > > > either in ebgp > > > > session or ibgp session. > > > > > > > > > > > > R1#sh ip bgp neighbors 155.1.146.4 > > > advertised-routes > > > > > > > > Total number of prefixes 0 > > > > > > > > R4#sh ip bgp neighbors 155.1.146.1 > > > advertised-routes > > > > > > > > Total number of prefixes 0 > > > > R4# > > > > > > > > > > > > I would greatly appreciate if someone can tell me if I am > > > missing something. > > > > > > > > > > > > > > > > Thanks in Advance for your clarification!!! > > > > > > > > Regards > > > > > > > > Saketh > > > > > > > > > > > > Blogs and organic groups at http://www.ccie.net > > > > > > > > > > > > > _______________________________________________________________________ > > > > Subscription information may be found at: > > > > http://www.groupstudy.com/list/CCIELab.html > > > Blogs and organic groups at http://www.ccie.net > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
Blogs and organic groups at http://www.ccie.net
























