199
Step Command Remarks
2. Enter BGP view or BGP-VPN
instance view.
• Enter BGP view:
bgp as-number
• Enter BGP-VPN instance view:
a. bgp as-number
b. ip vpn-instance
vpn-instance-name
N/A
3. Enter BGP IPv4 unicast
instance view or BGP-VPN
IPv4 unicast instance view.
ipv4-family [ unicast ] N/A
4. Enable MED comparison for
routes from confederation
peers.
bestroute med-confederation By default, this feature is disabled.
To enable MED comparison for routes from confederation peers (IPv6):
Step Command Remarks
1. Enter system view.
system-view N/A
2. Enter BGP view.
bgp as-number N/A
3. Enter BGP IPv6 unicast
instance view.
ipv6-family [ unicast ] N/A
4. Enable MED comparison for
routes from confederation
peers.
bestroute med-confederation By default, this feature is disabled.
Configuring the NEXT_HOP attribute
By default, a BGP router does not set itself as the next hop for routes advertised to an IBGP peer or peer
group. In some cases, however, you must configure the advertising router as the next hop to make sure
the BGP peer can find the correct next hop.
For example, as shown in Figure 54, R
outer A and Router B establish an EBGP neighbor relationship, and
Router B and Router C establish an IBGP neighbor relationship. If Router C has no route destined for IP
address 1.1.1.1/24, you must configure Router B to set itself 3.1.1.1/24 as the next hop for the network
2.1.1.1 / 24 a d ve r t i s e d t o R o u t e r C .
Figure 54 NEXT_HOP attribute configuration
If a BGP router has two peers on a broadcast network, it does not set itself as the next hop for routes sent
to an EBGP peer by default. As shown in Figure 55, R
outer A and Router B establish an EBGP neighbor
relationship, and Router B and Router C establish an IBGP neighbor relationship. They are on the same
b r o a d c a s t n e t w o r k 1.1.1.0 / 24 . W h e n R o u t e r B s e n d s E B G P routes to Router A, it does not set itself as the
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