C9800-connection-to-Nexus7K

[osman.elhanafy]

Dears,
We have a nexus7k and we connect a 9800 WLC to it by lacp.
We have done the basic configuration on the WLC as the following but we have an issue

i see the nexus on cdp neigh but i cann't ping to the gateway

Anyone can help please?

interface range te0/0/0-1
channel-gr 1 mode active
exit

interface po1
switchport mode trunk

interface vlan 1
no ip add
shut

interface vlan 65
descriptio "MGMT"
ip add 10.250.1.20 255.255.255.0
no shut

ip route 0.0.0.0 0.0.0.0 10.250.1.1

ip default-gateway 10.250.1.1

ntp server 172.22.117.9

enable secret Cisco123
username admin privill 15 secret Cisco123

line vty 0 15
login local
exit

service tcp-keepalives-in
service tcp-keepalives-out

wireless managemnet interface vlan 65
exit

ap dot11 24ghz shut
ap dot11 5ghz shut

ap country 
wireless country 

no ap dot11 24ghz shut
no ap dot11 5ghz shut

[M02@rt37]

Hello @osman.elhanafy,

Please share output of the command #sh ip int brief

Check if SVI65 is up/up

If yes, try ping 10.250.1.1 with source IP 10.250.1.20.

Does ARP table has got 10.250.1.1 MAC Add ?

[Rich R]

I don't see any vlan config there?
9800 needs vlan to be configured, just like you would on a switch.
vlan 65
 name ap-mgmt
And "show vlan" should then show vlan 65 active.
Can you see the the nexus in "sh lacp neigh"?
The port should be up if you can see cdp neigh but those ports often require "no negotiation auto" to work but if that's the case you'll see an error in the logs about that.

[JPavonM]

Port channeling should be forced with 'ON' and not with the use of LACP.

Mine is working this way.

[Rich R]

LACP working fine for us. 
That was one of the main improvements from AireOS to IOS-XE (although they did remove some of the existing IOS-XE LACP features for some unexplained reason).