cd validated-design/000-man/004a-run-bgp-rr
java -jar ../../rtr.jar test tester criann path ./ temp ./ wait
From that point you should have a running lab as depicted in the diagram below. This lab inherit from isis-ldp In the present lab, we will enable BGP on top of ISIS and MPLS-LDP
As BGP route reflection is a pure control plane set-up. It is a good opportunity to take advantage of freeRtr Virtual Device Context property. In the topology:
-
leh200001 (id=2) will host
rr1 -
uro200001 (id=4) will hots
rr2 -
On
leh20001
vdc definition rr1
local ethernet666
exit
- On
uro20001
vdc definition rr1
local ethernet666
exit
When VDC s created for the fisrt time, it will be effective only:
After having issue wr on leh20001 and uro20001
The command above will require a warm reboot of leh20001 and uro20001
- Example
leh200001#conf t
leh200001(cfg)#vdc definition rr1
leh200001(cfg-vdc)#local ethernet 666
leh200001(cfg-vdc)#do wr
leh200001(cfg-vdc)#exit
leh200001(cfg)#wr
leh200001(cfg)#exit
leh200001#reload warm
It is a best practice to implement in a iBGP domain route reflector redundancy, hence rr1 and rr2. In this case we will create a VDC for leh200001-rr1 and uro200001-rr2
In this example we also demonstrate the capability to simplify configuration by using BGP template at the RR level combined with access-list in order to match the BGP peer. For simplicity's sake we used 10.0.0.0/28 and fd00:200:971::0/124
- leh100001
leh100001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 24 6 02:26:36
10.0.0.255 200971 true 24 6 02:26:36
leh100001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 28 6 02:26:41
fd00:200:971::ff 200971 true 28 6 02:26:41
- leh200001
leh200001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 28 8 02:27:34
10.0.0.255 200971 true 26 8 02:27:34
leh200001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 24 8 02:27:38
fd00:200:971::ff 200971 true 22 8 02:27:38
- leh200001-rr1
❯ telnet 127.1 20002
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
welcome
line ready
leh200001#attach vdc rr1
leh200001-rr1#
leh200001-rr1#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.1 200971 true 6 30 02:31:38
10.0.0.2 200971 true 8 30 02:31:38
10.0.0.3 200971 true 6 30 02:31:38
10.0.0.4 200971 true 8 30 02:31:38
10.0.0.5 200971 true 6 30 02:31:38
10.0.0.6 200971 true 6 30 02:31:38
leh200001-rr1#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::1 200971 true 6 30 02:31:43
fd00:200:971::2 200971 true 8 30 02:31:43
fd00:200:971::3 200971 true 6 30 02:31:43
fd00:200:971::4 200971 true 8 30 02:31:43
fd00:200:971::5 200971 true 6 30 02:31:43
fd00:200:971::6 200971 true 6 30 02:31:43
leh200001-rr1# [ Exit with shortcut: Ctrl-c -> Ctrl-x]
connection closed
leh200001-rr1#
- uro100001
uro100001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 24 6 02:28:06
10.0.0.255 200971 true 24 6 02:28:06
uro100001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 28 6 02:28:10
fd00:200:971::ff 200971 true 28 6 02:28:10
- uro200001
uro200001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 26 8 02:28:37
10.0.0.255 200971 true 28 8 02:28:37
uro200001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 22 8 02:28:41
fd00:200:971::ff 200971 true 24 8 02:28:41
- leh200001-rr2
❯ telnet 127.1 20004
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
welcome
line ready
uro200001#attach vdc rr2
uro200001-rr2#
uro200001-rr2#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.1 200971 true 6 30 02:33:28
10.0.0.2 200971 true 8 30 02:33:28
10.0.0.3 200971 true 6 30 02:33:28
10.0.0.4 200971 true 8 30 02:33:28
10.0.0.5 200971 true 6 30 02:33:28
10.0.0.6 200971 true 6 30 02:33:28
uro200001-rr2#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::1 200971 true 6 30 02:33:35
fd00:200:971::2 200971 true 8 30 02:33:35
fd00:200:971::3 200971 true 6 30 02:33:35
fd00:200:971::4 200971 true 8 30 02:33:35
fd00:200:971::5 200971 true 6 30 02:33:35
fd00:200:971::6 200971 true 6 30 02:33:35
uro200001-rr2# [Exit with shortcut: Ctrl-c -> Ctrl-x]
connection closed
uro200001#
- cfr100001
cfr100001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 24 6 02:29:06
10.0.0.255 200971 true 24 6 02:29:06
cfr100001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 28 6 02:29:10
fd00:200:971::ff 200971 true 28 6 02:29:10
- cfr200001
cfr200001#show ipv4 bgp 1 summary
neighbor as ready learn sent uptime
10.0.0.254 200971 true 28 6 02:29:37
10.0.0.255 200971 true 28 6 02:29:37
cfr200001#show ipv6 bgp 1 summary
neighbor as ready learn sent uptime
fd00:200:971::fe 200971 true 24 6 02:29:41
fd00:200:971::ff 200971 true 24 6 02:29:41