Ethernet Switches & Routers

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Established Member
Posts: 1
Registered: ‎09-30-2015

LAG between ICX 7750 Stack and VDX 6740 VCS

Hi,

 

we trying to create a trunk between our VDX Fabic 6740 and ICX 7750.

 

The VDX Fabric consists of two 6740 in an VCS

 

show fabric all

VCS Id: 10
Config Mode: Distributed

Rbridge-id WWN IP Address Name
----------------------------------------------------------------------------
10 10:00:C4:F5:7C:77:2A:7F 192.168.x.x "DUS1"
20 10:00:C4:F5:7C:77:09:64 192.168.x.x >"DUS2"*

The Fabric has 2 Rbridge(s)

 

the VCS works fine.

 

Now i would like to create a trunk to our ICX 7750 Stack (also consists of two ICX 7750).

 

When i connect the cable the orange LED blinking really fast and the Port ist Blocked by ICX 7750. It happens with all Ports below.

When VDX is running and i reload the 7750 the Ports getting up and all ports are green.When i disconnect and connect the ports again i got the same issue with fast blinking orange LED.

 

 

DUS1 10/0/47 -> ICX 1/1/48

DUS1 10/0/48 -> ICX 2/1/48

DUS2 10/0/47 -> ICX 1/1/47

DUS2 10/0/48 -> ICX 2/1/47

 

On the VCS i have configured:

 

interface Port-channel 1

 vlag ignore-split

 speed 1000

 switchport

 switchport mode trunk

 switchport trunk allowed vlan all

 switchport trunk tag native-vlan

 spanning-tree shutdown

 no shutdown

!

interface TenGigabitEthernet 10/0/47

 description Core1/1/48

 channel-group 1 mode active type standard

 no fabric isl enable

 no fabric trunk enable

 lacp timeout long

 no shutdown

!

interface TenGigabitEthernet 10/0/48

 description Core2/1/48

 channel-group 1 mode active type standard

 no fabric isl enable

 no fabric trunk enable

 lacp timeout long

 no shutdown

!

interface TenGigabitEthernet 20/0/47

 description Core1/1/47

 channel-group 1 mode active type standard

 no fabric isl enable

 no fabric trunk enable

 lacp timeout long

 no shutdown

!

interface TenGigabitEthernet 20/0/48

 description Core2/1/47

 channel-group 1 mode active type standard

 no fabric isl enable

 no fabric trunk enable

 lacp timeout long

 no shutdown

!

 

On the ICX:

 

lag core-ibx-interx dynamic id 2

 ports ethernet 1/1/47 to 1/1/48 ethernet 2/1/47 to 2/1/48

 primary-port 1/1/47

 deploy

!

vlan 150 name "Mgmt VLAN" by port

 tagged ethe 1/1/3 to 1/1/4 ethe 1/1/33 ethe 1/1/47 to 1/1/48 ethe 2/1/3 to 2/1/4 ethe 2/1/33 ethe 2/1/47 to 2/1/48

 no spanning-tree

!

interface ethernet 1/1/47

 speed-duplex 1000-full

!

 

 

The interface shows on ICX

 

show interfaces ethernet 1/1/48

10GigabitEthernet1/1/48 is down, line protocol is down

  Port down for 3 minute(s) 42 second(s)

  Hardware is 10GigabitEthernet, address is cc4e.24cf.1b2e (bia cc4e.24cf.1b2f)

  Configured speed 1Gbit, actual unknown, configured duplex fdx, actual unknown

  Member of 1 L2 VLANs, port is tagged, port state is BLOCKING

  BPDU guard is Disabled, ROOT protect is Disabled, Designated protect is Disabled

  Link Error Dampening is Disabled

  STP configured to ON, priority is level0, mac-learning is enabled

  Flow Control is disabled

  Mirror disabled, Monitor disabled

  Mac-notification is disabled

  Member of active trunk ports 1/1/47,1/1/48,2/1/47,2/1/48, primary port is 1/1/47

  Member of configured trunk ports 1/1/47,1/1/48,2/1/47,2/1/48, primary port is 1/1/47

  No port name

  IPG XGMII 96 bits-time

  MTU 1500 bytes

  MMU Mode is Cut-through

  300 second input rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

  300 second output rate: 0 bits/sec, 0 packets/sec, 0.00% utilization

  71 packets input, 5662 bytes, 0 no buffer

  Received 57 broadcasts, 14 multicasts, 0 unicasts

  0 input errors, 0 CRC, 0 frame, 0 ignored

  0 runts, 0 giants

  71 packets output, 12072 bytes, 0 underruns

  Transmitted 28 broadcasts, 43 multicasts, 0 unicasts

  0 output errors, 0 collisions

  Relay Agent Information option: Disabled

 

Interface on VDX

do sh int ten 20/0/48
TenGigabitEthernet 20/0/48 is up, line protocol is down (link protocol down)
Hardware is Ethernet, address is c4f5.7c77.099a
Current address is c4f5.7c77.099a
Pluggable media present
Description: Core2/1/47
Interface index (ifindex) is 86101065728
MTU 2500 bytes
LineSpeed Actual : Nil
LineSpeed Configured : Auto, Duplex: Full
Priority Tag disable
Last clearing of show interface counters: 06:24:14
Queueing strategy: fifo
Receive Statistics:
5188 packets, 697977 bytes
Unicasts: 51, Multicasts: 5031, Broadcasts: 106
64-byte pkts: 0, Over 64-byte pkts: 187, Over 127-byte pkts: 4823
Over 255-byte pkts: 178, Over 511-byte pkts: 0, Over 1023-byte pkts: 0
Over 1518-byte pkts(Jumbo): 0
Runts: 0, Jabbers: 0, CRC: 0, Overruns: 0
Errors: 0, Discards: 0
Transmit Statistics:
17934 packets, 1598318 bytes
Unicasts: 388, Multicasts: 5522, Broadcasts: 12024
Underruns: 0
Errors: 0, Discards: 0
Rate info:
Input 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Output 0.000000 Mbits/sec, 0 packets/sec, 0.00% of line-rate
Time since last interface status change: 00:00:23

 

Port-Channel summary on VDX 

 

do show port-channel summary

Flags:  D - Down                P - Up in port-channel (members)

        U - Up (port-channel)   * - Primary link in port-channel

        S - Switched

        M - Not in use. Min-links not met

===== =============== ========== ===============

Group Port-channel    Protocol   Member ports

===== =============== ========== ===============

1     Po 1    (SU)    vLAG       Te 10/0/47* (P)

                                 Te 10/0/48 (D)

                                 Te 20/0/47 (P)

                                 Te 20/0/48 (D)

Brocade Moderator
Posts: 238
Registered: ‎06-30-2010

Re: LAG between ICX 7750 Stack and VDX 6740 VCS

Hi,

 

I note from your output that the ports are configured at 1Gbit, as I understand it depending on which type of media you have in the ICX flashing yellow could be expected when an SFP+ port is configured in 1G mode.

 

May be worth disconnecting all but one cable and testing with a single cable connected between the two devices to verify connectivity prior to adding multiple links in LAG (vLAG)

 

Hope this helps

 

Regards

Mick 


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