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TS2 ( Q3)- BGP load balancing


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#1 keenlearnwireless

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Posted 09 May 2018 - 03:16 PM

Hi Experts,

Can somebody help me to understand the output i am getting for Question 3 ( BGP load-balancing).

If I try to  traceroute 10.2.201.254 from sw110, its load  sharing however expected output is not going as below.



SW110#traceroute 10.2.201.254
Type escape sequence to abort.
Tracing the route to 10.2.201.254
VRF info: (vrf in name/id, vrf out name/id)
  1 10.1.22.1 1 msec
    10.1.20.1 0 msec
    10.1.22.1 1 msec
  2 10.1.113.1 1 msec
    10.1.213.1 2 msec
    10.1.113.1 1 msec
  3 10.12.23.2 [AS 19999] 1 msec 2 msec 1 msec
  4 10.2.123.2 [AS 65002] 2 msec
    10.2.223.2 [AS 65002] 3 msec
    10.2.123.2 [AS 65002] 2 msec
  5 10.2.21.2 [AS 65002] 3 msec
    10.2.23.2 [AS 65002] 2 msec *

am i missing anything on this part. i am getting expected output from sw210 , it has issue with only sw110 and that too only with 10.2.201.254.

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#2 Routetarget100

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Posted 10 May 2018 - 07:43 PM

This is the issue U need to solve :) check ospf costs on int, any route maps on gw routers, ospf neigh, access lists. Check if RR are configured with advert 2 routers, all RR clients with receive 2 best path

#3 marsooq

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Posted 12 May 2018 - 08:32 AM

Check MED route-map and access-list in R22 & R23

#4 sever

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Posted 15 May 2018 - 11:16 AM

View Postkeenlearnwireless, on 09 May 2018 - 03:16 PM, said:


If I try to  traceroute 10.2.201.254 from sw110, its load  sharing however expected output is not going as below.


Hi, paste here your output.

#5 raptoriks

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Posted 17 May 2018 - 01:04 AM

Hi guys
I also got this one
Can someone in general explain the logic of usage of igp and incomplete origins in this particular case?

#6 ciscosp8

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Posted 19 May 2018 - 04:28 PM

Please share your output and expected output

#7 Routetarget100

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Posted 20 May 2018 - 06:01 PM

Just configure route maps to much on both routers (injects same metric, same origin)

#8 marsooq

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Posted 21 May 2018 - 10:43 AM

igp have more path preference than incomplete




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