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Author Topic: LACP between Nortel 4548GT-PWR stack and Cisco 3850 stack  (Read 4074 times)

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Offline cacids

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LACP between Nortel 4548GT-PWR stack and Cisco 3850 stack
« on: February 19, 2014, 07:21:17 PM »
Hi Guys,

I am trying to build LACP bundle between Nortel 4548GT-PWR and Cisco 3850 switches. At present, 4548 is connected to Nortel 8310 via MLT. I have referred all the articles from Michael but as I am trying to change the existing one, it's giving me an error. Let me provide some details and hopefully I will get the solution.

3x4548GT-PWR is connected to 3xCisco3850

Nortel Config
! *** VLAN ***
!
vlan create 71,101,113,213 type port 1
vlan ports 1/2-8 tagging unTagPvidOnly
vlan ports 1/9 tagging unTagPvidOnly filter-unregistered-frames disable
vlan ports 1/10-44 tagging unTagPvidOnly
vlan ports 1/45-46 tagging tagAll
vlan ports 1/47-48,2/1-44 tagging unTagPvidOnly
vlan ports 2/45 tagging tagAll
vlan ports 3/3-44 tagging unTagPvidOnly
vlan ports 3/45-46 tagging tagAll
vlan ports 3/47-48 tagging unTagPvidOnly
vlan configcontrol flexible
vlan members 1 NONE
vlan members 71 1/45,2/45
vlan members 101 1/1-2,1/27,1/45,2/45,3/1-2
vlan members 113 1/2-26,1/28-45,2/1-45,3/3-42,3/44
vlan members 213 1/3-26,1/28-48,2/1-45,3/3-48
vlan ports 1/1-2 pvid 101
vlan ports 1/3-26 pvid 213
vlan ports 1/27 pvid 101
vlan ports 1/28-42 pvid 213
vlan ports 1/43-44 pvid 101
vlan ports 1/45-48,2/1-45 pvid 213
vlan ports 3/1-2 pvid 101
vlan ports 3/3-48 pvid 213
!
! *** VLAN Phase 2***
!
vlan mgmt 213
!
! *** Interface ***
!
interface FastEthernet ALL
auto-negotiation-advertisements port 3/1-2 100-full pause-frame
speed port 1/1,1/27,1/43-44,3/43 100
shutdown port 1/46-48,2/46-48,3/46-48
snmp trap link-status port 1/1-44,2/1-44,3/1-44 disable
speed port 3/46 1000
duplex port 1/1,1/27,1/43-44,3/43,3/46 full
exit

Before changes:
Nortel#show mlt 1
Id Name             Members                Bpdu   Mode           Status  Type
-- ---------------- ---------------------- ------ -------------- ------- ------
1  Core Trunk       1/45,3/45              All    Basic          Enabled Trunk

Nortel#show lacp port 1/45,3/45
                                       Admin Oper         Trunk Partner
Unit/Port Priority Lacp    A/I Timeout Key   Key   AggId Id    Port    Status
--------- -------- ------- --- ------- ----- ----- ----- ----- ------- -------
1/45      32768    Off     I   Long    1     0     0      1             Up
3/45      32768    Off     I   Long    1     0     0      1             Up

Now, I am deleting existing MLT and configuring LACP on 1/45 and 3/45

Nortel(config)#no mlt 1

I am getting below error while configuring LACP. I also tried same key [1] but same error.

Nortel(config-if)#lacp key port 1/45,3/45 10
Nortel(config-if)#lacp timeout-time port 1/45,3/45 long
Nortel(config-if)#lacp mode port 1/45,3/45 active
% Cannot modify settings
% Same port key is used by ports belonging to different VLAN


Any idea? MLT 1 is already deleted [please see below]
Nortel#show mlt 1
Id Name             Members                Bpdu   Mode           Status  Type
-- ---------------- ---------------------- ------ -------------- ------- ------
1  Trunk #1         NONE                   All    Basic          Disabled

Then I tried to manually create MLT 32 and assigned 1/45 and 3/45 as below
Nortel(config)#mlt 32 name "ToCore" member 1/45,3/45
Nortel#show mlt 32
Id Name             Members                Bpdu   Mode           Status  Type
-- ---------------- ---------------------- ------ -------------- ------- ------
32 ToCore           1/45,3/45              All    Basic          Disabled

and assigned completely new key, let's say 33 but still getting same error.

Nortel(config-if)#lacp key port 1/45,3/45 33
Nortel(config-if)#lacp mode port 1/45,3/45 active
% Cannot modify settings
% Same port key is used by ports belonging to different VLAN



your input would be appreciated.
« Last Edit: February 19, 2014, 08:05:21 PM by cacids »


Offline Michael McNamara

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    • michaelfmcnamara
    • Michael McNamara
Re: LACP between Nortel 4548GT-PWR stack and Cisco 3850 stack
« Reply #1 on: March 02, 2014, 09:33:35 AM »
The ports that you are going to use in the LACP configuration need to have the same VLANs assigned and the same PVID.

Good Luck!
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Offline cacids

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Re: LACP between Nortel 4548GT-PWR stack and Cisco 3850 stack
« Reply #2 on: March 04, 2014, 08:34:49 PM »
it worked michael. thanks a lot.  8)