getting duplicate packets when pinging any network wih Meraki switches

SOLVED
RbradComms
Here to help

getting duplicate packets when pinging any network wih Meraki switches

we have started to introduce Meraki Switches in our networks.

when I ping a remote subnet( from a Cisco Nexus switch) that has Meraki I get duplicate packets, even I ping the Cisco router on that subnet

other subnets at the same site are ok

 

 

Any ideas?

Is there some sort of proxy replying?

 

( router no Meraki)

 

rmd-sw01# ping 10.24.2.1
PING 10.24.2.1 (10.24.2.1): 56 data bytes
64 bytes from 10.24.2.1: icmp_seq=0 ttl=252 time=1.885 ms
64 bytes from 10.24.2.1: icmp_seq=1 ttl=252 time=1.477 ms
64 bytes from 10.24.2.1: icmp_seq=2 ttl=252 time=1.46 ms
64 bytes from 10.24.2.1: icmp_seq=3 ttl=252 time=1.445 ms
64 bytes from 10.24.2.1: icmp_seq=4 ttl=252 time=1.409 ms

--- 10.24.2.1 ping statistics ---
5 packets transmitted, 5 packets received, 0.00% packet loss
round-trip min/avg/max = 1.409/1.535/1.885 ms

 

Router with Meraki Management subnet


rmd-sw01# ping 10.24.24.1
PING 10.24.24.1 (10.24.24.1): 56 data bytes
64 bytes from 10.24.24.1: icmp_seq=0 ttl=252 time=1.796 ms
64 bytes from 10.24.24.1: icmp_seq=0 ttl=250 time=2.074 ms (DUP!)
64 bytes from 10.24.24.1: icmp_seq=1 ttl=252 time=1.576 ms
64 bytes from 10.24.24.1: icmp_seq=1 ttl=250 time=1.802 ms (DUP!)
64 bytes from 10.24.24.1: icmp_seq=2 ttl=252 time=1.582 ms
64 bytes from 10.24.24.1: icmp_seq=2 ttl=250 time=1.793 ms (DUP!)
64 bytes from 10.24.24.1: icmp_seq=3 ttl=252 time=1.446 ms
64 bytes from 10.24.24.1: icmp_seq=3 ttl=250 time=1.643 ms (DUP!)
64 bytes from 10.24.24.1: icmp_seq=4 ttl=252 time=1.652 ms
64 bytes from 10.24.24.1: icmp_seq=4 ttl=250 time=1.735 ms (DUP!)

--- 10.24.24.1 ping statistics ---
5 packets transmitted, 5 packets received, +5 duplicates, 0.00% packet loss
round-trip min/avg/max = 1.446/1.709/2.074 ms
rmd-sw01#

1 ACCEPTED SOLUTION

Hi Philip,

Ignore my last reply.

The problem is the PBR I have setup on the Nexus switches

View solution in original post

3 REPLIES 3
PhilipDAth
Kind of a big deal

Are the Meraki switches doing routing, or what is doing routing at the remote sites?

Do you go through the Meraki switch to ping the router?

Hi Philip,

No, we Have ISR4000s doing the routing for the 7 Vlans however we do have one routed IP for our voice Vlan to allow IGMP snooping. All the Meraki APs and switches have a dedicated management Vlan Also see the same problem with the Meraki Camera Vlan. Don't get the problem on any of the other non Meraki  Vlans.

the other thing, I only see the problem when pinging from the Nexus switches in the DC.

Hi Philip,

Ignore my last reply.

The problem is the PBR I have setup on the Nexus switches

View solution in original post

Get notified when there are additional replies to this discussion.
Welcome to the Meraki Community!
To start contributing, simply sign in with your Cisco account. If you don't yet have a Cisco account, you can sign up.
Labels