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Create Port Channel on Cisco NCS 540 Router with Non-Cisco Switch

Cisco Support
Level 1
Level 1
We are going to aggregate two GIG ports of NCS router and connect to the Non -Cisco Layer 03 core switch stack. Please refer to the below mention diagram for more understanding 
WhatsApp Image 2023-06-30 at 14.29.27.jpeg
 

 

 
As per above diagram
Configuration already made on Cisco NCS 540 1 Router:
 
interface Bundle-Ether1
 description Link to HQ_LAN_CORE
 ipv4 address 172.16.7.161 255.255.255.248
 
interface GigabitEthernet0/0/0/18
 bundle id 1 mode active
!
interface GigabitEthernet0/0/0/19
 bundle id 1 mode active
 
 
NCS router has been configured in the above manner and link aggregation has been configured in the same manner in the non cisco switch. But after connecting the cables, the gig ports of the router are up, but the ports of the non-cisco switch are not up. That mean port channel in operational between NCS router and non-cisco switch
 
Please note:  aggregate port of the non-cisco switch is in switch port state, but the NCS router's gig port are not specify as switchports 
 
What could be the issue, NCS router unable to aggregate their ports with layer 2 interface or if their any specific method to do that?
17 Replies 17

M02@rt37
VIP
VIP

Hello @Cisco Support,

The non Cisco L3 LAN-CORE Stack is configured in a cluster mode ? Equivalent of virtual domain or virtual chassis ?

 

Best regards
.ı|ı.ı|ı. If This Helps, Please Rate .ı|ı.ı|ı.

Yes we L3 LAN-Core is Configured as two switch cluster 

can I see the config of PO in SW side?

hostname Switch
!
boot-start-marker
boot-end-marker
!
!
!
!
no aaa new-model
switch 2 provision ws-c2960s-48ts-l
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
!
!
!
vlan internal allocation policy ascending
!
!
!
interface Port-channel1
switchport access vlan 100
switchport mode access
!
interface FastEthernet0
no ip address
!
interface GigabitEthernet2/0/1
!
interface GigabitEthernet2/0/2
!
interface GigabitEthernet2/0/3
!
interface GigabitEthernet2/0/4
!
interface GigabitEthernet2/0/5
!
interface GigabitEthernet2/0/6
!
interface GigabitEthernet2/0/7
!
interface GigabitEthernet2/0/8
!
interface GigabitEthernet2/0/9
!
interface GigabitEthernet2/0/10
!
interface GigabitEthernet2/0/11
!
interface GigabitEthernet2/0/12
!
interface GigabitEthernet2/0/13
!
interface GigabitEthernet2/0/14
!
interface GigabitEthernet2/0/15
!
interface GigabitEthernet2/0/16
!
interface GigabitEthernet2/0/17
!
interface GigabitEthernet2/0/18
!
interface GigabitEthernet2/0/19
!
interface GigabitEthernet2/0/20
!
interface GigabitEthernet2/0/21
!
interface GigabitEthernet2/0/22
!
interface GigabitEthernet2/0/23
!
interface GigabitEthernet2/0/24
!
interface GigabitEthernet2/0/25
!
interface GigabitEthernet2/0/26
!
interface GigabitEthernet2/0/27
!
interface GigabitEthernet2/0/28
!
interface GigabitEthernet2/0/29
!
interface GigabitEthernet2/0/30
!
interface GigabitEthernet2/0/31
!
interface GigabitEthernet2/0/32
!
interface GigabitEthernet2/0/33
!
interface GigabitEthernet2/0/34
!
interface GigabitEthernet2/0/35
!
interface GigabitEthernet2/0/36
!
interface GigabitEthernet2/0/37
!
interface GigabitEthernet2/0/38
!
interface GigabitEthernet2/0/39
!
interface GigabitEthernet2/0/40
!
interface GigabitEthernet2/0/41
!
interface GigabitEthernet2/0/42
!
interface GigabitEthernet2/0/43
!
interface GigabitEthernet2/0/44
!
interface GigabitEthernet2/0/45
!
interface GigabitEthernet2/0/46
!
interface GigabitEthernet2/0/47
!
interface GigabitEthernet2/0/48
!
interface GigabitEthernet2/0/49
switchport access vlan 100
switchport mode access
channel-group 1 mode active
!
interface GigabitEthernet2/0/50
switchport access vlan 100
switchport mode access
channel-group 1 mode active
!
interface GigabitEthernet2/0/51
!
interface GigabitEthernet2/0/52
!
interface Vlan1
no ip address
!
interface Vlan100
ip address 172.16.7.163 255.255.255.248
!
ip http server
ip http secure-server
!

sorry why you use bundle not port-channel ?

Can we use NCS 540 router port as switch port? if yes how can we do that?

As per the guideline of NCS router configuration it mentioned link aggregation following way:

interface Bundle-Ether1
 description Link to HQ_LAN_CORE
 ipv4 address 172.16.7.161 255.255.255.248
 
interface GigabitEthernet0/0/0/18
 bundle id 1 mode active
!
interface GigabitEthernet0/0/0/19
 bundle id 1 mode active
 
Above method is working fine with another NCS 540 Router, but not working with Layer 2 Switch, so I want clarify that.

you have NCS bundle config as L3 router port connect to stack-SW PO config as L2 swithport with access vlan 100 
from my view it must be work
I already try this with CSR1000 and it work (try using Portchannel not bundle)
may be double check show ip int brief and show interface status see if the SW & NCS add PO to it Database. 

RP/0/RSP0/CPU0:Cisco-XR1#show lacp Bundle-ether xx <<- share this if you can

okay.. but how can I use port-channel instead of bundle in the NCS? coz as per the my reference i unable to find how to config port-channels on NCS instead of Bundles

correct I already check this point, IOS and IOS XE named it as port channel, IOS XE named it as bundle. 
share 

RP/0/RSP0/CPU0:Cisco-XR1#show lacp Bundle-ether xx <<- share this if you can

show etherchannel summary <<- in SW side

RP/0/RP0/CPU0:HQR01#show lacp bundle-Ether 1
Fri Jun 30 15:59:49.236 UTC
State: a - Port is marked as Aggregatable.
s - Port is Synchronized with peer.
c - Port is marked as Collecting.
d - Port is marked as Distributing.
A - Device is in Active mode.
F - Device requests PDUs from the peer at fast rate.
D - Port is using default values for partner information.
E - Information about partner has expired.

Bundle-Ether1

Port (rate) State Port ID Key System ID
-------------------- -------- ------------- ------ ------------------------
Local
Gi0/0/0/18 1s a---A-D- 0x8000,0x0002 0x0001 0x8000,48-2e-72-16-e4-85
Partner 30s -----FD- 0x0000,0x0000 0x0000 0x0000,00-00-00-00-00-00
Gi0/0/0/19 1s a---A-D- 0x8000,0x0001 0x0001 0x8000,48-2e-72-16-e4-85
Partner 30s -----FD- 0x0000,0x0000 0x0000 0x0000,00-00-00-00-00-00

Port Receive Period Selection Mux A Churn P Churn
-------------------- ---------- ------ ---------- --------- ------- -------
Local
Gi0/0/0/18 Defaulted Fast Unselect Detached Monitor Monitor
Gi0/0/0/19 Defaulted Fast Unselect Detached Monitor Monitor
RP/0/RP0/CPU0:HQR01#

 

 

Switch#show 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
------+-------------+-----------+-----------------------------------------------
1 Po1(SD) LACP Gi2/0/49(D) Gi2/0/50(D)

in SW the PO is down 
no shut for PO and it port member 

Yes I already issued no shut command both gig interface but when i connects to the NCS the SW port is down 

connect cable and no shut the port again. 

Cisco Support
Level 1
Level 1

Yes Did it, but not working still port is not up

shutdown

Switch(config)#interface range gigabitEthernet 2/0/49-50
Switch(config-if-range)#shu
Switch(config-if-range)#shutdown
Switch(config-if-range)#
*Mar 1 01:01:48.561: %LINK-5-CHANGED: Interface GigabitEthernet2/0/49, changed state to administratively down
*Mar 1 01:01:48.572: %LINK-5-CHANGED: Interface GigabitEthernet2/0/50, changed state to administratively down

 

 

Switch(config)#interface range gigabitEthernet 2/0/49-50
Switch(config-if-range)#no shu
Switch(config-if-range)#no shutdown
Switch(config-if-range)#
*Mar 1 01:02:34.856: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/49, changed state to down
*Mar 1 01:02:34.871: %LINK-3-UPDOWN: Interface GigabitEthernet2/0/50, changed state to down

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