Dell PowerSwitch S5212F-ON EMC SmartFabric OS10 User Guide Release 10.5.0 - Page 572
Local AS, AS number limit
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Configure passive peering OS10(config)# router bgp 10 OS10(conf-router-bgp-10)# template bgppg OS10(conf-router-template)# remote-as 100 OS10(conf-router-template)# listen 32.1.0.0/8 limit 10 Local AS During BGP network migration, you can maintain existing AS numbers. Reconfigure your routers with the new information to disable after the migration. Network migration is not supported on passive peer templates. You must configure Peer templates before assigning it to an AS. 1. Enter a neighbor IP address, A.B.C.D, in ROUTER-BGP mode. neighbor ip-address 2. Enter a local-as number for the peer, and the AS values not prepended to announcements from the neighbors in ROUTER-NEIGHBOR mode (1 to 4294967295). local-as as number [no prepend] 3. Return to ROUTER-BGP mode. exit 4. Enter a template name to assign to the peer-groups in ROUTER-BGP mode. A maximum of 16 characters. template template-name 5. Enter a local-as number for the peer in ROUTER-TEMPLATE mode. local-as as number [no prepend] 6. Add a remote AS in ROUTER-TEMPLATE mode (1 to 65535 for 2 bytes, 1 to 4294967295 for 4 bytes). remote-as as-number Allow external routes from neighbor OS10(config)# router bgp 10 OS10(conf-router-bgp-10)# neighbor 32.1.1.2 OS10(conf-router-neighbor)# local-as 50 OS10(conf-router-neighbor)# exit OS10(conf-router-bgp-10)# template bgppg1 OS10(conf-router-template)# fall-over OS10(conf-router-template)# local-as 400 OS10(conf-router-template)# remote-as 102 Local AS number disabled OS10(config)# router bgp 102 OS10(conf-router-bgp-102)# neighbor 32.1.1.2 OS10(conf-router-neighbor)# no local-as 100 AS number limit Sets the number of times an AS number occurs in an AS path. The allow-as parameter permits a BGP speaker to allow the AS number for a configured number of times in the updates received from the peer. The AS-PATH loop is detected if the local AS number is present more than the number of times in the command. 1. Enter the neighbor IP address to use the AS path in ROUTER-BGP mode. neighbor ip address 572 Layer 3
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