Allowing Establishment Of Ebgp Connection To A Non Directly Connected Peer/Peer Group; Controlling Route Generation - HP 4800G Series Configuration Manual

To do...
Enter system view
Enter BGP view
Specify the source
interface for
establishing TCP
connections to a peer
or peer group
To establish multiple BGP connections between two routers, you need to specify on the local router the
source interface for establishing TCP connections to each peer; otherwise, the local BGP router may
fail to establish TCP connections to a peer when using the outbound interface of the best route to the
peer as the source interface.
Allowing Establishment of eBGP Connection to a Non Directly Connected Peer/Peer
Group
In general, direct physical links should be available between eBGP peers. If not, you can use the peer
ebgp-max-hop command to establish a TCP connection over multiple hops between two peers.
Follow these steps to allow establishment of eBGP connection to a non directly connected peer/peer
group:
To do...
Enter system view
Enter BGP view
Allow the establishment of
eBGP connection to a non
directly connected peer/peer
group
The peer ebgp-max-hop command needs not be configured if the two eBGP peers are directly
connected.

Controlling Route Generation

Different from IGP, BGP focuses on route generation and advertisement control and optimal route
selection.
Use the command...
system-view
bgp as-number
peer { group-name |
ip-address }
connect-interface
interface-type
interface-number
Use the command...
system-view
bgp as-number
peer { group-name |
ip-address } ebgp-max-hop
[ hop-count ]
1-19
Remarks
—
—
Required
By default, BGP uses the outbound
interface of the best route to the BGP
peer/peer group as the source interface for
establishing a TCP connection to the
peer/peer group.
Remarks
—
—
Optional
Not allowed by default.