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Author Topic: SMLT issues (triangulair setup with 7024 cores and 4550 access)  (Read 1694 times)

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Offline MattieM

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I have a triangulair network setup with 2x VSP7024 running 10.3.1 and a access stack of 2x 4550 switches. The cores running IST. I would like to run SMLT to the access layer, but the SMLT or actually the SLT status keeps saying 'norm'.

===============================================================================
                                        MLT SMLT Info
===============================================================================
MLT   SMLT     ADMIN    CURRENT
ID    ID       TYPE     TYPE
-------------------------------------------------------------------------------
1               ist     ist
===============================================================================
                                        SLT Info
===============================================================================
PORT  SMLT     ADMIN    CURRENT
NUM   ID       TYPE     TYPE
-------------------------------------------------------------------------------
1       65      slt     norm


It must be a configuration issue, but i can't figure it out...

Core 1 (posted only relevant rows)
spanning-tree mode mst

vlan name 2 "IST_vlan2"
vlan members 2 23-24

mlt 1 name "IST" enable member 23-24

spanning-tree mstp port 1,23-24 learning disable

mlt spanning-tree 1 cist learning disable

interface vlan 2
ip address 10.255.255.1 255.255.255.252 3
exit

vlacp enable
vlacp macaddress 180.c200.f
interface Ethernet ALL
vlacp port 23-24 slow-periodic-time 10000
vlacp port 1 timeout short
vlacp port 1 timeout-scale 5
vlacp port 1,23-24 enable
exit

interface mlt 1
ist peer-ip 10.255.255.2
ist vlan 2
ist enable
exit

interface Ethernet ALL
smlt port 1 65
exit


Core 2 (posted only relevant rows)
spanning-tree mode mst

vlan name 2 "IST_vlan2"
vlan members 2 23-24

mlt 1 name "IST" enable member 23-24

spanning-tree mstp port 1,23-24 learning disable

mlt spanning-tree 1 cist learning disable

interface vlan 2
ip address 10.255.255.2 255.255.255.252 3
exit

vlacp enable
vlacp macaddress 180.c200.f
interface Ethernet ALL
vlacp port 23-24 slow-periodic-time 10000
vlacp port 1 timeout short
vlacp port 1 timeout-scale 5
vlacp port 1,23-24 enable
exit

interface mlt 1
ist peer-ip 10.255.255.1
ist vlan 2
ist enable
exit

interface Ethernet ALL
smlt port 1 65
exit


Access stack (posted only relevant rows)
mlt 1 name "Trunk #1" enable member 1/1,2/1

spanning-tree port-mode normal
interface FastEthernet ALL
spanning-tree port 1/1 learning disable
spanning-tree port 2/1 learning disable
exit


Can anybody help me out?


Offline Dominik

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    • Networkautobahn
Re: SMLT issues (triangulair setup with 7024 cores and 4550 access)
« Reply #1 on: August 27, 2014, 10:46:25 AM »
Do you have configured VLACP on your Access Stack ?

You have configured it on both of your cores:
vlacp port 1,23-24 enable

with
sho vlacp interface 1/1
you can check if everything is OK.
It should say admin and oper enable true, otherwise you have a link that is blocked by VLACP.


Good Luck
Itīs always the networks fault!
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