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Routing issue - Point to Point connection

We have 2 x 3850 switches. 1 each at different datacentres. We are trying to get Veeam replication and copy backup to run over this connection. However we are getting failed attempts. If we run the job over the MPLS everything works fine. I can ping both ends of the P2P. 

 

he config is below for how it is set up

 

DC 1

VLAN 500 

Int vlan 500

192.168.xxx.254

 

Gi1/0/1

switchport trunk encapsulation dot1q
switchport trunk allowed vlan 104,173,402,500
switchport mode trunk

Ip route 10.78.xxx.41 255.255.255.255 192.168.xxx.253

 

 

DC 2

VLAN 500 

Int vlan 500

192.168.xxx.253

 

Gi1/0/1

switchport trunk encapsulation dot1q
switchport trunk allowed vlan 104,173,402,500
switchport mode trunk

Ip route 10.77.xxx.182 255.255.255.255 192.168.xxx.254

 

VLAN 104 (server VLAN) is at DC1. 

VLAN 500 (Routing VLAN) at DC1

VLAN 173 (Server VLAN) at DC2 

VLAN 402 (Server VLAN) at DC2

1 Reply 1

Mark Malone
VIP Alumni
VIP Alumni
Hi
If its the exact same config i would run a wireshark or PCAP on the working job on MPLS and then compare it to the wireshark of the failed job on the p2p link , there maybe some device thats transparent to you thats dropping certain packets on the p2p link
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