The configuration of BGP4+ Federation In MSR Series

The configuration of BGP4+ Federation In MSR Series

 

 

Keywords: MSR;IPv6;BGP4+;Federation

I            Requirement for the diagram

Devide AS100 to 3 AS: 1001,1002,1003; Config EBGP and IBGP, make AS mutual reachable.

II          Network topology

Figure 1 BGP Federatioin  

III        Steps of configuration

1．RouterA configuration：

Note: only list the command that related with this case

<RouterA-2021>dis cu

#

 ipv6

#

interface Ethernet0/1

 port link-mode route

 ipv6 address 1::1/64

#

interface NULL0

#

interface LoopBack0

 ipv6 address 1:1:1::1/128

 

#

bgp 1001

 //set federation id

 confederation id 100

 //set the peer of federtation

 confederation peer-as 1002 1003

 undo synchronization

 #

 ipv6-family

  network 1:1:1::1 128

  undo synchronization

  peer 1::2 as-number 1002

  peer 1::3 as-number 1003

#

return

2．RouterB configuration：

    <RouterB-2020>dis cu

#

 ipv6

#

vlan 1

#

interface Ethernet0/0

 port link-mode route

#

interface Ethernet0/1

 port link-mode route

 ipv6 address 1::2/64

 ipv6 address 2::2/64

#

interface LoopBack0

 ipv6 address 2:2:2::2/128

#

bgp 1002

 confederation id 100

 confederation peer-as 1001 1003

 undo synchronization

 #

 ipv6-family

  network 2:2:2::2 128

  undo synchronization

  peer 1::1 as-number 1001

  peer 1::3 as-number 1003

#

return

 

3．RouterC configuration：

    <RouterC-3020>dis cu

#

 ipv6

#

interface LoopBack0

 ipv6 address 3:3:3::3/128

#

interface GigabitEthernet0/0

 port link-mode route

 ipv6 address 4::1/64

#

interface GigabitEthernet0/1

 port link-mode route

 ipv6 address 1::3/64

#

bgp 1003       

 confederation id 100

 confederation peer-as 1001 1002

 import-route direct

 undo synchronization

 #

 ipv6-family

  network 1::1 128

  network 1::2 128

  //import direct routing

  import-route direct

  undo synchronization

  peer 1::1 as-number 1001

  peer 1::2 as-number 1002

  peer 4::2 as-number 200

#

return

 

4．RouterD configuration：

    <RouterD-3020>dis cu

 #

 ipv6

#

interface LoopBack0

 ipv6 address 4:4:4::4/128

#

interface GigabitEthernet0/0

 port link-mode route

 ipv6 address 4::2/64

 ip address 4.0.0.2 255.255.255.0

#

bgp 200

 undo synchronization

 #

 ipv6-family

  network 4:4:4::4 128

  undo synchronization

  peer 4::1 as-number 100

#

return

 

IV       Key notes in the configuration

1) In this case, Router A, B, C use the same IPv6 prefix, this is unnecessary.We can use other prifix if need.

2)  Must import direct route, otherwise, RouterA,B could not ping loopback address of RouterD, because RouterC only advertise the routing info of itself.