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WhenIissuethe"showiproutebgp"command,IseemyroutesbeinglearnedviaOSPFandBGP.HowcanIverifyontheNX-OSwhichonewillalwaysbeusedandwhichoneisabackup?

Cisco スイッチに関するよくある質問 よくある質問

を発行すると、 “show ip route bgp” 指示, I see my routes being learned via OSPF and BGP. How can I verify on the NX-OS which one will always be used and which one is a backup?

を発行すると、 “show ip route bgp” 指示, I see my routes being learned via OSPF and BGP. How can I verify on the NX-OS which one will always be used and which one is a backup?

届いたものはこちら:

Nexus_7010#show ip route bgp
IP Route Table for VRF "デフォルト"
'*' denotes best ucast next-hop
'**' denotes best mcast next-hop
'[x/y]' denotes [preference/metric]

172.20.62.0/23, ubest/mbest: 1/0
    *via 10.194.160.2, [20/0], 18:53:35, bgp-[AS-Number], internal, tag [番号]
     via 10.194.16.5, Vlan116, [110/1043], 18:43:51, ospf-1, intra
172.20.122.0/23, ubest/mbest: 1/0
    *via 10.194.160.2, [20/0], 18:53:35, bgp-[AS-Number], internal, tag [番号]
     via 10.194.16.5, Vlan116, [110/1041], 18:43:51, ospf-1, intra

By default, BGP selects only a single best path and does not perform load balancing. 結果として, the route marked with the * will always be used, unless it goes down, at which point any remaining routes will become the preferred path.