HP 6125G HP 6125G & 6125G/XG Blade Switches Layer 3 - IP Routing Confi - Page 248
Configuring the MED attribute
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• In a third party next hop network where the two IPv6 EBGP peers reside in a common broadcast subnet, the router does not change the next hop for routes sent to the IPv6 EBGP peer or peer group by default, unless the peer next-hop-local command is configured. To configure IPv6 BGP preference and default LOCAL_PREF and NEXT_HOP attributes: Step 1. Enter system view. 2. Enter BGP view. 3. Enter IPv6 address family view. 4. Configure preference values for IPv6 BGP external, internal, and local routes. 5. Configure the default local preference. 6. Advertise routes to an IPv6 peer or peer group with the local router as the next hop. Command system-view bgp as-number Remarks N/A N/A ipv6-family N/A preference { external-preference internal-preference local-preference | route-policy route-policy-name } Optional. The default preference values of external, internal, and local routes are 255, 255, and 130. default local-preference value Optional. The value defaults to 100. peer { ipv6-group-name | ipv6-address } next-hop-local By default, IPv6 BGP specifies the local router as the next hop for routes sent to an IPv6 EBGP peer or peer group, but does not change the next hop for routes sent to an IPv6 IBGP peer or peer group. Configuring the MED attribute Step 1. Enter system view. 2. Enter BGP view. 3. Enter IPv6 address family view. Command system-view bgp as-number ipv6-family 4. Configure a default MED value. default med med-value 5. Enable the comparison of MED for routes from different EBGP peers. compare-different-as-med 6. Enable the comparison of MED for routes from each AS. bestroute compare-med 7. Enable the comparison of MED for routes from confederation peers. bestroute med-confederation Remarks N/A N/A N/A Optional. Defaults to 0. Optional. Not enabled by default. Optional. Disabled by default. Optional. Disabled by default. Configuring the AS_PATH attribute 238
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