Wired Intelligent Edge (Campus Switching and Routing)

Aruba 3810M – How to Configure Basic IPV4 BGP Routing

MVP
MVP
Requirement:

This article discusses how to configure basic IPV4 BGP routing.



Solution:

In the following example, switches Rack2sw1 and Rack2sw2 are configured for BGP routing.

 • IP addresses are configured on the VLAN 1 and Loopback 0 interfaces.
 • BGP routing is enable for the autonomous system ID 12.
 • Connected interfaces are redistributed into BGP.



Configuration:

 

********** Configure IP interfaces **********


Rack2sw1(config)# interface loopback 0 ip address 1.1.1.1
Rack2sw1(config)# vlan 1 ip address 192.168.12.1/24


********** Configure BGP routing **********

SWITCH 1
Rack2sw1(config)# ip routing
Rack2sw1(config)# router bgp 12 neighbor 192.168.12.2 remote-as 12
Rack2sw1(config)# router bgp 12 enable
Rack2sw1(config)# router bgp 12 redistribute connected
 

SWITCH 2
Rack2sw2(config)# ip routing
Rack2sw2(config)# router bgp 12 neighbor 192.168.12.1 remote-as 12
Rack2sw2(config)# router bgp 12 enable
Rack2sw2(config)# router bgp 12 redistribute connected



Verification

SWITCH 1

Rack2sw1# show ip bgp summary

 Peer Information

  Remote Address  Remote-AS Local-AS State         Admin Status
  --------------- --------- -------- ------------- ------------
  192.168.12.2    12        12       Established   Start
 

Rack2sw1# show ip bgp neighbor 192.168.12.2 advertised-routes
  Status codes: * - valid, > - best, i - internal, e - external, s - stale
  Origin codes: i - IGP, e - EGP, ? - incomplete

     Network            Nexthop         Metric     LocalPref  Weight AsPath
     ------------------ --------------- ---------- ---------- ------ ---------
*>i  1.1.1.1/32         192.168.12.1    0          100        32768           ?
*>i  192.168.12.0/24    192.168.12.1    0          100        32768           ?
 

Rack2sw1# show ip bgp neighbor 192.168.12.2 received-routes
  Status codes: * - valid, > - best, i - internal, e - external, s - stale
  Origin codes: i - IGP, e - EGP, ? - incomplete

     Network            Nexthop         Metric     LocalPref  Weight AsPath
     ------------------ --------------- ---------- ---------- ------ ---------
*>i  2.2.2.2/32         192.168.12.2    0          100        0               ?
  i  192.168.12.0/24    192.168.12.2    0          100        0               ?
 

Rack2sw1# show ip route bgp

                                IP Route Entries

  Destination        Gateway         VLAN Type      Sub-Type   Metric     Dist.
  ------------------ --------------- ---- --------- ---------- ---------- -----
  2.2.2.2/32         192.168.12.2    1    bgp       internal   0          200


SWITCH 2

Rack2sw2# show ip bgp summary

 Peer Information

  Remote Address  Remote-AS Local-AS State         Admin Status
  --------------- --------- -------- ------------- ------------
  192.168.12.1    12        12       Established   Start


Rack2sw2# show ip bgp neighbor 192.168.12.1 advertised-routes
  Status codes: * - valid, > - best, i - internal, e - external, s - stale
  Origin codes: i - IGP, e - EGP, ? - incomplete

     Network            Nexthop         Metric     LocalPref  Weight AsPath
     ------------------ --------------- ---------- ---------- ------ ---------
*>i  2.2.2.2/32         192.168.12.2    0          100        32768           ?
*>i  192.168.12.0/24    192.168.12.2    0          100        32768           ?
 

Rack2sw2# show ip bgp neighbor 192.168.12.1 received-routes
  Status codes: * - valid, > - best, i - internal, e - external, s - stale
  Origin codes: i - IGP, e - EGP, ? - incomplete

     Network            Nexthop         Metric     LocalPref  Weight AsPath
     ------------------ --------------- ---------- ---------- ------ ---------
*>i  1.1.1.1/32         192.168.12.1    0          100        0               ?
  i  192.168.12.0/24    192.168.12.1    0          100        0               ?
 

Rack2sw2# show ip route bgp

                                IP Route Entries

  Destination        Gateway         VLAN Type      Sub-Type   Metric     Dist.
  ------------------ --------------- ---- --------- ---------- ---------- -----
  1.1.1.1/32         192.168.12.1    1    bgp       internal   0          170​

 

CONNECTIVITY VERIFICATION

Rack2sw1# ping 2.2.2.2
2.2.2.2 is alive, time = 1 ms

Rack2sw2# ping 1.1.1.1
1.1.1.1 is alive, time = 2 ms

Version history
Revision #:
1 of 1
Last update:
‎05-29-2020 09:12 AM
Updated by:
 
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