Hello,
I've been testing with NSX-T deployment, but I got stuck setting up BGP sessions between my Tier-0 gateway and my physical routers (SLX9640).
All session are Established succesfully and both NSX and physical routers are advertising routes/prefixes. However neither side seems to be receiving them.
SLX9640 neighbor sum:
Neighbor Address AS# State Time Rt:Accepted Filtered Sent ToSend
10.18.163.26 65020 ESTAB 1h6m50s 0 0 2 0
10.18.163.27 65020 ESTAB 1h6m50s 0 0 2 0
10.18.163.34 65020 ESTAB 1h6m50s 0 0 2 0
10.18.163.35 65020 ESTAB 1h6m50s 0 0 2 0
NSX-T (edge01) neighbor sum:
Router ID: 10.18.163.26 Local AS: 65020
Neighbor AS State Up/DownTime BFD InMsgs OutMsgs InPfx OutPfx
10.18.163.25 65001 Estab 01:08:55 NC 6476 5735 0 1
10.18.163.33 65001 Estab 01:08:55 NC 6450 5714 0 1
I currently have prefix-filters configured to accept the advertised routes from their neighbors and I've tried without any prefix filter.
Looking at my SLX9640 I would expect to see any incoming routes either as accepted or filtered, but both are repporting 0 (zero). That make me wonder if I am missing some setting in NSX-T that prevents the routes to actually be exchanged.
> get bgp neigh 10.18.163.25 advertised-routes
BGP IPv4 table version is 5
Local router ID is 10.18.163.26
Status flags: > - best, I - internal
Origin flags: i - IGP, e - EGP, ? - incomplete
Network Next Hop Metric LocPrf Weight Path
> 10.18.173.0/24 0.0.0.0 0 100 32768 65020 65020 65020 ?
Does anybody recognizes this behaviour and can point me in the right direction?
Thanks in advance!
NSX-T get neighbor:
BGP neighbor is 10.18.163.25, remote AS 65001, local AS 65020, external link
BGP version 4, remote router ID 10.18.163.205, local router ID 10.18.163.26
BGP state = Established, up for 01:24:08
Last read 00:00:18, Last write 00:00:08
Hold time is 180, keepalive interval is 60 seconds
Configured hold time is 180, keepalive interval is 60 seconds
Neighbor capabilities:
4 Byte AS: advertised and received
AddPath:
IPv4 Unicast: RX advertised IPv4 Unicast
Route refresh: advertised and received(old & new)
Address Family IPv4 Unicast: advertised and received
Hostname Capability: advertised (name: caveo-nsx-edge01,domain name: n/a) not received
Graceful Restart Capability: advertised
Graceful restart information:
Local GR Mode: Restart*
Remote GR Mode: Disable
R bit: False
Timers:
Configured Restart Time(sec): 180
Received Restart Time(sec): 0
Message statistics:
Inq depth is 0
Outq depth is 0
Sent Rcvd
Opens: 26 26
Notifications: 36 8
Updates: 41 108
Keepalives: 5640 6351
Route Refresh: 8 0
Capability: 0 0
Total: 5751 6493
Minimum time between advertisement runs is 0 seconds
Update source is 10.18.163.26
For address family: IPv4 Unicast
Update group 22, subgroup 16
Packet Queue length 0
Community attribute sent to this neighbor(all)
Inbound path policy configured
Outbound path policy configured
Route map for incoming advertisements is *4cc11e74-f15f-4840-aacd-a5266412a391
Route map for outgoing advertisements is *701018b8-a94a-4965-a5ab-5d9dbe8655f1
0 accepted prefixes
Maximum prefixes allowed 100 (warning-only)
Threshold for warning message 75%
Connections established 12; dropped 14
Looped AS count 0
Last reset 01:24:09, due to NOTIFICATION sent (Cease/Connection collision resolution)
Local host: 10.18.163.26, Local port: 36369
Foreign host: 10.18.163.25, Foreign port: 179
Nexthop: 10.18.163.26
Nexthop global: ::
Nexthop local: ::
BGP connection: shared network
BGP Connect Retry Timer in Seconds: 10
Estimated round trip time: 4 ms
Read thread: on Write thread: on FD used: 26
