Have you a Huawei NE series router and a Cisco Nexus switch? Do you have to enable communication between a router’s L3 sub-interface and a and the switch trunk? Yes? Ok, so this post is 4 you!
- in Huawei ARP broadcast is not enabled in sub-interfaces so a packet entering in the subif is discarded by the system beacause is considered as a blackhole route.
- Cisco & Huawei don’t have a good auto negotiation so you should set them manually on both side.
here you are:
HUAWEI:
#
interface GigabitEthernet0/5/0
description to Switch
undo negotiation auto
speed 1000
duplex full
undo shutdown
trap-threshold input-rate 1 resume-rate 1
trap-threshold output-rate 1 resume-rate 1
undo lldp enable
undo dcn
#
interface GigabitEthernet0/5/0.15
description to Switch * subif vlan 15
ip address 192.168.15.10 255.255.255.0
statistic enable
encapsulation dot1q-termination
dot1q termination vid 15
arp broadcast enable
#
CISCO:
#
interface GigabitEthernet3/1
description to Router
no negotiation auto
switchport
switchport trunk encapsulation dot1q
switchport trunk alloweb vlan 5,10,15
switchport mode trunk
#enjoy!
.glitchlist crew