The following example shows the routes in the BGP (Border Gateway Protocol) routing table at Router A after applying the custFilter inbound policy:
* Switch.127 # show bgp routes address-family ipv6-unicast all Routes: Destination LPref Weight MED Peer Next-Hop AS-Path ------------------------------------------------------------------------- *>i 2001:db8:4001::/48 100 1 100 2001:db8:2000::2 2001:db8:2000::2 1100 5623 *>i 2001:db8:4002::/48 100 1 100 2001:db8:2000::2 2001:db8:2000::2 1100 5623 *>i 2001:db8:4003::/48 100 1 100 2001:db8:2000::2 2001:db8:2000::2 1100 5623 *>i 2001:db8:5030::/48 100 1 100 2001:db8:2000::2 2001:db8:2000::2 1100 4977 *>i 2001:db8:5031::/48 100 1 100 2001:db8:2000::2 2001:db8:2000::2 1100 4977 Flags: (*) Preferred BGP route, (>) Active, (d) Suppressed, (h) History (s) Stale, (m) Multipath, (u) Unfeasible Origin: (?) Incomplete, (e) EGP, (i) IGP BGP Route Statistics Total Rxed Routes : 6 Feasible Routes : 5 Active Routes : 5 Rejected Routes : 1 Unfeasible Routes : 0 Route Statistics on Session Type Routes from Int Peer: 0 Routes from Ext Peer: 5
Route 2001:db8:a004::/48 is not present in the BGP routing table shown above.
The routes were updated because soft-reset is configured for this neighbor.
The following command examples show that the denied routes are not transmitted to the neighbors:
* Switch.130 # show bgp neighbor 2001:db8:3000::2 address-family ipv6-unicast transmitted-routes all Advertised Routes: Destination LPref Weight MED Peer Next-Hop AS-Path ------------------------------------------------------------------------- >i 2001:db8:4001::/48 0 100 2001:db8:3000::1 2100 1100 5623 >i 2001:db8:4002::/48 0 100 2001:db8:3000::1 2100 1100 5623 >i 2001:db8:4003::/48 0 100 2001:db8:3000::1 2100 1100 5623 >i 2001:db8:5030::/48 0 100 2001:db8:3000::1 2100 1100 4977 >i 2001:db8:5031::/48 0 100 2001:db8:3000::1 2100 1100 4977 Flags: (*) Preferred BGP route, (>) Active, (d) Suppressed, (h) History (s) Stale, (m) Multipath, (u) Unfeasible Origin: (?) Incomplete, (e) EGP, (i) IGP BGP Route Statistics Advertised Routes : 5
The next example shows another way to see that the MED values are set as defined in the policy.
* Switch.131 # show bgp neighbor 2001:db8:3000::2 address-family ipv6-unicast transmitted-routes detail all Advertised Routes: Route: 2001:db8:4001::/48, Active Origin IGP, Next-Hop 2001:db8:3000::1, MED 100 As-PATH: 2100 1100 5623 Route: 2001:db8:4002::/48, Active Origin IGP, Next-Hop 2001:db8:3000::1, MED 100 As-PATH: 2100 1100 5623 Route: 2001:db8:4003::/48, Active Origin IGP, Next-Hop 2001:db8:3000::1, MED 100 As-PATH: 2100 1100 5623 Route: 2001:db8:5030::/48, Active Origin IGP, Next-Hop 2001:db8:3000::1, MED 100 As-PATH: 2100 1100 4977 Route: 2001:db8:5031::/48, Active Origin IGP, Next-Hop 2001:db8:3000::1, MED 100 As-PATH: 2100 1100 4977 BGP Route Statistics Advertised Routes : 5
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