What is that "E" in BGP output?

General
1

What is the meaning of that “E” whenever we are receiving the pool from customer is appears to be “I”.

Then what is that “E” ???

run show route receive-protocol bgp 103.27.56.158 | match 103.163.47.0/24

  • 103.163.47.0/24 103.27.56.158 141549 E
2

External route
When you receive a route from a different BGP AS number, it will indicate the E symbol.

R_2#show ip bgp
BGP table version is 2, local router ID is 10.65.16.4
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete
3

Hey Friend,

See the following prefixes which are getting on live network. Both AS are different but still showing dissimilar details.

I am not able to understanding exact reason.

Juniper# run show route receive-protocol bgp 103.27.55.158 | match 103.166.4

  • 103.166.47.0/24 103.27.55.158 141540 E

{master}[edit]
Juniper# run show route receive-protocol bgp 103.228.28.214 | match 103.77.22

  • 103.77.227.0/24 103.228.28.214 135239 I
4

The output provides the IP prefixes that fit the provided filter together with the routes that were obtained via BGP from particular BGP neighbors.
Neighbor IP: 103.27.55.158 and Matched IP Prefix: 103.166.47.0/24 are both included in the first output.

  • Local Preference: 141540 * Next hop: 103.27.55.158
  • External route type (E)
    In the second report, you may find: * Neighbor IP: 103.228.28.214 * Matched IP Prefix: 103.77.227.0/24
  • Local Preference: 135239 * Next hop: 103.228.28.214
  • Internal route type (I)

Route types are categorized in the context of BGP as follows:

  • External (E): Routes discovered by autonomous systems (AS) from outside the system.
    Internal (I) routes are those that have been learned from the router’s local AS, or internal AS.

Information about the IP prefixes discovered from the selected BGP neighbors, their next-hop addresses, and the local preference given to these routes are all included in the output.

5

Hello,

Can you explain me on call if you don’t mind…???