2013年6月10日星期一

Tools to view routing table?


Question:

Has anyone heard of a tool WS-C3750V2-24PS-S that you could use to view/troubleshoot routing tables? I am looking for something that would visualize routes on a diagram, showing the amount of routes that point to certain next hops. This is for maintenance windows, where I redirect traffic away from a certain router. The problem is all the show commands I see end up displaying routes across multiple lines, so you can't just include the next-hop IP and be sure you have caught every route.


Answer:

the best way to extract routing table from a router is snmp:

1 - ISO assigned OIDs
1.3 - ISO Identified Organization
1.3.6 - US Department of Defense
1.3.6.1 - OID assignments from 1.3.6.1 - Internet
1.3.6.1.2 - IETF Management
1.3.6.1.2.1 - SNMP MIB-2
1.3.6.1.2.1.4 - ip
1.3.6.1.2.1.4.21  WS-C3750V2-48PS-S - ipRouteTable 

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