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Silver

ME3600 does not forward frames out one interface in service instance

Hi,

I have an issue with ME3600 running 15.3(1)S. I have a BDI used for CPE

management.

cisco ME-3600X-24FS-M

Cisco IOS Software, ME360x Software (ME360x-UNIVERSALK9-M), Version

15.3(1)S, RELEASE SOFTWARE (fc1)

This is the BDI and VRF configuration:

interface Vlan1620

ip vrf forwarding 65000:1620

ip address 10.232.28.1 255.255.252.0

no ip redirects

ip vrf 65000:1620

rd 65000:1620

route-target export 65000:1620

route-target import 65000:1620

address-family ipv4 vrf 65000:1620

redistribute connected

The MPLS part is working fine, no issues there. There is also a DHCP

pool handing out IPs to the CPEs.

ip dhcp pool 65000:1620

vrf 65000:1620

network 10.232.28.0 255.255.252.0

domain-name xyz

default-router 10.232.28.1

option 66 ascii 10.232.28.1

dns-server 8.8.8.8

lease 0 0 30

This also works fine and I have verified that CPE has both IP and GW.

Then for the service instance configuration:

interface GigabitEthernet0/5

switchport trunk allowed vlan none

switchport mode trunk

service instance 1620 ethernet

encapsulation dot1q 1620

rewrite ingress tag pop 1 symmetric

bridge-domain 1620

interface GigabitEthernet0/11

switchport trunk allowed vlan none

switchport mode trunk

service instance 1620 ethernet

encapsulation dot1q 1620

rewrite ingress tag pop 1 symmetric

bridge-domain 1620

Traffic to CPEs behind Gi0/11 works:

sh ip arp vrf 65000:1620 vlan 1620 | i 29.26

Internet 10.232.29.26 0 0022.07f3.3450 ARPA Vlan1620

show mac-address-table address 0022.07f3.3450

Mac Address Table

-------------------------------------------

Vlan Mac Address Type Ports

---- ----------- -------- -----

1620 0022.07f3.3450 DYNAMIC Gi0/11+Efp1620

Total Mac Addresses for this criterion: 1

Pinging 10.232.29.26 with 32 bytes of data:

Reply from 10.232.29.26: bytes=32 time=33ms TTL=61

Reply from 10.232.29.26: bytes=32 time=32ms TTL=61

Reply from 10.232.29.26: bytes=32 time=34ms TTL=61

Reply from 10.232.29.26: bytes=32 time=32ms TTL=61

Traffic to CPEs behind Gi0/5 does not work.

sh ip arp vrf 65000:1620 vlan 1620 | i 28.190

Internet 10.232.28.190 2 0022.07f2.76a6 ARPA Vlan1620

show mac-address-table address 0022.07f2.76a6

Mac Address Table

-------------------------------------------

Vlan Mac Address Type Ports

---- ----------- -------- -----

1620 0022.07f2.76a6 DYNAMIC Gi0/5+Efp1620

Total Mac Addresses for this criterion: 1

Pinging 10.232.28.190 with 32 bytes of data:

Request timed out.

Request timed out.

Request timed out.

Request timed out.

This is also confirmed by looking at counters. There seems to be no

egress traffic on Gi0/5.

Service Instance 1620, Interface GigabitEthernet0/11

Pkts In Bytes In Pkts Out Bytes Out

31717 2955368 4569808 1709207624

Service Instance 1620, Interface GigabitEthernet0/5

Pkts In Bytes In Pkts Out Bytes Out

4850878 367975447 0 0

It does work to ping locally from the 3600 though:

ping vrf 65000:1620 10.232.28.190

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 10.232.28.190, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms

I'm not sure how to troubleshoot it further. I've also tried setting up

ERSPAN sessions for RX traffic on Gi0/5 but I don't get anything in

unless I ping 28.1 which is the IP of the interface on the 3600.

Any clues?

Daniel Dib
CCIE #37149

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Daniel Dib CCIE #37149 Please rate helpful posts.
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