01-28-2018 06:09 AM - edited 03-05-2019 09:50 AM
Friends, I'm trying to configure VSS on a pair of 16 port 4500X.
However, whilst creating the VSL I'm getting below and Port-channel isn't coming up.
EC-5-CANNOT_BUNDLE2: Te1/1 is not compatible with Po5 and will be suspended (trunk mode of Te1/1 is dynamic, Po5 is trunk)
Please help!
01-28-2018 08:01 AM
01-28-2018 08:21 AM
Thanks Bro!!
I even tried that configuring the physical ports as trunks.
Below is my VSL configuration the Warning that I get when applying Port-channel on the Te interfaces
***** Also attached some show outputs of logical and physical interfaces*******
Switch(config)#switch virtual domain 165
Domain ID 165 config will take effect only
after the exec command 'switch convert mode virtual' is issued
Switch(config-vs-domain)#switch 1
Switch(config-vs-domain)#switch 1 priority 200
Switch(config-vs-domain)#exit
!
Switch(config)#int port-channel 39
Switch(config-if)#switchport
Switch(config-if)#switch virtual link 1
WARNING:Port channel number for VSL on both chassis should not be same
Switch(config)#int range te 1/1-2
Switch(config-if-range)#channel-group 39 mode on
WARNING: Interface TenGigabitEthernet1/1 placed in restricted config mode. All extraneous configs removed!
*Jan 28 05:14:15.787: %EC-5-CANNOT_BUNDLE2: Te1/1 is not compatible with Po39 and will be suspended (trunk mode of Te1/1 is dynamic, Po39 is trunk)
WARNING: Interface TenGigabitEthernet1/2 placed in restricted config mode. All extraneous configs removed!
*Jan 28 05:14:16.986: %EC-5-CANNOT_BUNDLE2: Te1/2 is not compatible with Po39 and will be suspended (trunk mode of Te1/2 is dynamic, Po39 is trunk)
01-28-2018 08:26 AM
Hi
retry removing all configs :
default interface te1/1
default interface te1/2
no int port-ch 39
!
nterface Port-channel39
description - VSL LINK -
no switchport
no ip address
switch virtual link 1
!
interface range Te1/1 - 2
description - VSL LINK -
no switchport
no ip address
no cdp enable
channel-group 39 mode on
Try that and let me know
01-28-2018 08:50 AM
Thanks again Francesco for your prompt support.
But don't you think that by configuring Po39 with no switchport command will create a L3 etherchannel, whereas a L2 port-channel is needed to create the Virtual Switching Links.
01-28-2018 08:54 AM
Sorry, I gave you a VSS config for 6k...
On 4k try that:
default interface te1/1
default interface te1/2
no int port-ch 39
!
interface Port-channel39
description - VSL LINK -
switchport
switchport mode trunk
switchport nonegotiate
switch virtual link 1
!
interface range Te1/1 - 2
description - VSL LINK -
switchport mode trunk
switchport nonegotiate
no lldp transmit
no lldp receive
no cdp enable
channel-group 1 mode on
01-28-2018 09:41 AM
01-28-2018 09:45 AM - edited 01-28-2018 09:45 AM
It's just to be sure interfaces are configured properly. This is not mandatory.
I asked to set interfaces as his issue is coming from misconfiguration.
01-28-2018 09:57 AM - edited 01-28-2018 09:59 AM
I even tried resetting all the configs which were automatically added to the interfaces when I created the VSL.
Here is the revised configs but the interfaces stay as suspended member of port-channel :(
*****************
Configuration
*****************
interface Port-channel39
switchport
switchport mode trunk
switchport nonegotiate
switch virtual link 1
!
interface TenGigabitEthernet1/1
switchport mode trunk
switchport nonegotiate
no lldp transmit
no lldp receive
no cdp enable
channel-group 39 mode on
service-policy output VSL-Queuing-Policy
!
interface TenGigabitEthernet1/2
switchport mode trunk
switchport nonegotiate
no lldp transmit
no lldp receive
no cdp enable
channel-group 39 mode on
service-policy output VSL-Queuing-Policy
!
*******************
Sh output
******************
sh int tenGigabitEthernet 1/1 sw
Switch#sh int tenGigabitEthernet 1/1 switchport
Name: Te1/1
Switchport: Enabled
Administrative Mode: trunk
Operational Mode: down (suspended member of bundle Po39)
Administrative Trunking Encapsulation: dot1q
Negotiation of Trunking: Off
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Administrative Native VLAN tagging: enabled
Voice VLAN: none
Administrative private-vlan host-association: none
Administrative private-vlan mapping: none
Administrative private-vlan trunk native VLAN: none
Administrative private-vlan trunk Native VLAN tagging: enabled
Administrative private-vlan trunk encapsulation: dot1q
Administrative private-vlan trunk normal VLANs: none
Administrative private-vlan trunk associations: none
Administrative private-vlan trunk mappings: none
Operational private-vlan: none
Trunking VLANs Enabled: ALL
Pruning VLANs Enabled: 2-1001
Capture Mode Disabled
Capture VLANs Allowed: ALL
Unknown unicast blocked: disabled
Unknown multicast blocked: disabled
Appliance trust: none
01-28-2018 10:00 AM
01-28-2018 10:02 AM
Sure here it is...
Switch#sh etherchannel summary
Flags: D - down P - bundled in port-channel
I - stand-alone s - suspended
H - Hot-standby (LACP only)
R - Layer3 S - Layer2
U - in use f - failed to allocate aggregator
M - not in use, minimum links not met
u - unsuitable for bundling
w - waiting to be aggregated
d - default port
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
------+-------------+-----------+-----------------------------------------------
39 Po39(SD) - Te1/1(w) Te1/2(w)
01-28-2018 10:05 AM
01-28-2018 10:10 AM
The other switch that is planned to be paired with this one as VSS is having the same issues with different port-channel which is Po40
Same outputs from that switch as well.
I didn't do any additional configs just a normal way of making the VSS no idea why the VSL isn't coming up :(
Step 1
Switch 1
SW1(config)#switch virtual domain 165
SW1(config-vs-domain)#switch 1
SW1(config-vs-domain)#switch 1 priority 200
SW1(config-vs-domain)#exit
SW1(config)#
Switch 2
SW2(config)#switch virtual domain 165
SW2(config-vs-domain)#switch 2
SW2(config-vs-domain)#exit
SW2(config)#
Step 2
Switch 1
SW1(config)#int port-channel 39
SW1(config-if)#switchport
SW1(config-if)#switch virtual link 1
SW1(config-if)#no shut
SW1(config-if)#exit
Switch 2
SW2(config)#int port-channel 41
SW2(config-if)#switchport
SW2(config-if)#switch virtual link 2
SW2(config-if)#no shut
SW2(config-if)#exit
Step 3
Switch 1
SW2(config)#int range te 1/1-2
SW2(config-if-range)#channel-group 39 mode on
SW2(config-if-range)#exit
!
Switch 2
SW2(config)#int range te 1/1-2
SW2(config-if-range)#channel-group 41 mode on
SW2(config-if-range)#exit
!
Please note that both of my switches are straight out of the box and have no configs at all on them
01-28-2018 10:17 AM
01-28-2018 10:26 AM - edited 01-28-2018 10:31 AM
Do you think it's safe to configure VSL as dynamic auto, I mean in case of any link-flapping or VSS split brain switchports might flap to be working as Access Ports.
In fact, the warning I'm getting doesn't say anything about dtp nonegotiation
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide