Users Guide

Redistribute active and inactive IPv4 OSPF routes into BGP
OS10# configure terminal
OS10(config)# route-map redis-inactive-routes
OS10(config-route-map)# match inactive-path-additive
OS10(config-route-map)# exit
OS10(config)# router bgp 100
OS10(config-router-bgp-100)# address-family ipv4 unicast
OS10(configure-router-bgpv4-af)# redistribute ospf 10 route-map redis-inactive-r
outes
Redistribute active and inactive IPv6 L2 VPN EVPN routes into BGP
OS10# configure terminal
OS10(config)# route-map redis-inactive-routes
OS10(config-route-map)# match inactive-path-additive
OS10(config-route-map)# exit
OS10(config)# router bgp 100
OS10(config-router-bgp-100)# address-family ipv6 unicast
OS10(configure-router-bgpv4-af)# redistribute l2vpn evpn route-map redis-inactive-r
outes
Additional paths
The add-path command is disabled by default.
1. Assign an AS number in CONFIGURATION mode.
router bgp as-number
2. Enter a neighbor and IP address (A.B.C.D) in ROUTER-BGP mode.
neighbor ip-address
3. Enter Address Family mode in ROUTER-NEIGHBOR mode.
address-family {[ipv4 | ipv6] [unicast])
4. Allow the specified neighbor to send or receive multiple path advertisements in ROUTER-BGP mode. The count parameter
controls the number of paths that are advertised — not the number of paths received.
add-path [both | received | send] count
Enable additional paths
OS10(config)# router bgp 102
OS10(conf-router-bgp-102)# neighbor 32.1.1.2
OS10(conf-router-neighbor)# address-family ipv4 unicast
OS10(conf-router-bgp-neighbor-af)# add-path both 3
MED attributes
OS10 uses the MULTI_EXIT_DISC or MED attribute when comparing EBGP paths from the same AS. MED comparison is not
performed in paths from neighbors with different AS numbers.
1. Enable MED comparison in the paths from neighbors with different AS in ROUTER-BGP mode.
always-compare-med
2. Change the best path MED selection in ROUTER-BGP mode.
bestpath med {confed | missing-as-best}
818
Layer 3