Rt updating bgp 0 0 0 0 0

15 Jan

By inspecting the entries in this table, you can see things like: R12#show ip eigrp topology 10.1.14.0/24 EIGRP-IPv4 VR(HQ) Topology Entry for AS(65201)/ID(10.1.12.12) for 10.1.14.0/24 State is Passive, Query origin flag is 1, 0 Successor(s), FD is Infinity, RIB is 4294967295 Descriptor Blocks: 123.1.0.18 (Ethernet0/0), from 123.1.0.18, Send flag is 0x0 Composite metric is (198000640/132464640), route is Internal Vector metric: Minimum bandwidth is 10000 Kbit Total delay is 2021250000 picoseconds Reliability is 255/255 Load is 1/255 Minimum MTU is 1500 Hop count is 4 So what’s going on here?

Unless I’m missing something, there isn’t a direct way to understand what this means (please post a comment if I’ve overlooked something).

We usually follow an 8-point troubleshooting model like the one below: Just like in most protocols, there are some very specific, common issues and problems, as well as their corresponding solutions.

Here in our article on BGP troubleshooting, we’ll be looking at these four potential problems/issues: If the Layer 2 process or Interface is down, it may prevent a neighbor relationship from forming.

You should be able to see a line where it says something like: Fast Ethernet 0/0 is up, line protocol is up.

RPD maintains the routing table and properly distributes routes from the routing table into the kernel and the hardware complexes used for traffic forwarding.Here’s a tip for debugging the routing table: since the output can be quite verbose, create an access-list that matches on the prefix(es) you want to inspect and then use that ACL when turning on debug.*Mar 28 .417: RT: updating bgp 10.1.14.0/24 (0x0) : via 10.1.11.11 0 *Mar 28 .417: RT: closer admin distance for 10.1.14.0, flushing 1 routes *Mar 28 .417: RT: R12#add 10.1.14.0/24 via 10.1.11.11, bgp metric [20/1029760] *Mar 28 .464: RT: updating eigrp 10.1.14.0/24 (0x0) : via 123.1.0.18 Et0/0 0 *Mar 28 .464: RT: rib update return code: 17 Oh. The same route is being learned via BGP (in this case, e BGP with an admin distance of 20) which is causing the RIB to yank the EIGRP route and install the e BGP route.This separation creates an environment in which the router can still forward the traffic when its control plane is down.As long as the traffic is actually flowing through the router, users do not experience any network-related issues.