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x670V Stacking Issue


Userlevel 4
Create Date: Jun 17 2013 6:53PM

I am stacking 2 x670V switches for our main core. Since all ports are 10G sfp we are setting up the stack to use Ethernet ports as alternate stacking ports (Ports 47 and 48). I setup it up like it said in the concepts guide and it runs nice so far (limited testing for now). When I ran show ports command to see everything I saw this. I reran the command with just the last 10 ports on each slot.

* Slot-1 Stack.35 # show ports 1:39-48,2:39-48 no-refresh
Port Summary
Port Display VLAN Name Port Link Speed Duplex
# String (or # VLANs) State State Actual Actual
==================================================================
1:39 E R
1:40 E R
1:41 E R
1:42 E R
1:43 E R
1:44 E R
1:45 E NP
1:46 E NP
1:47 E NP
1:48 E NP
2:39 E R
2:40 E R
2:41 E R
2:42 E R
2:43 E R
2:44 E R
2:45 E NP
2:46 E NP
2:47 E NP
2:48 E NP
==================================================================
Port State: D-Disabled, E-Enabled
Link State: A-Active, R-Ready, NP-Port not present, L-Loopback,
D-ELSM enabled but not up
d-Ethernet OAM enabled but not up

The last 4 ports on each slot show as NP (not present). I understand that 47 and 48 would be NP since we are stacking with those two ports, but I don't know why 45 and 46 are, unless the switch has to cannibalize 2 extra ports to stack with Ethernet.

* Slot-1 Stack.35 # show version
Slot-1 : ################## Rev 6.0 BootROM: 2.0.1.6 IMG: 15.3.1.4
Slot-2 : ################## Rev 6.0 BootROM: 2.0.1.6 IMG: 15.3.1.4
Slot-3 :
Slot-4 :
Slot-5 :
Slot-6 :
Slot-7 :
Slot-8 :

Image : ExtremeXOS version 15.3.1.4 v1531b4 by release-manager
on Mon Feb 4 19:19:04 EST 2013
BootROM : 2.0.1.6
Diagnostics : 5.10

Has anyone else seen this before?

Thanks! (from bw447)

3 replies

Userlevel 4
Create Date: Jun 17 2013 10:39PM

What is the output of the show stacking stack-port command? (from ethernet)
Userlevel 4
Create Date: Jun 18 2013 12:04PM

Hi ethernet,

Thanks for the reply.

Slot-1 Stack.2 # show stacking stack-ports
Stack Topology is a Ring
Slot Port Select Node MAC Address Port State Flags Speed
---- ---- ------ ----------------- ----------- ----- -----
*1 1 47 00:04:96:6d:65:87 Operational C- 10G
*1 2 48 00:04:96:6d:65:87 Operational CB 10G
2 1 47 00:04:96:6d:65:6d Operational CB 10G
2 2 48 00:04:96:6d:65:6d Operational C- 10G
* - Indicates this node
Flags: (C) Control path is active, (B) Port is Blocked
Slot-1 Stack.2 #

(from bw447)
Userlevel 4
Create Date: Jun 24 2013 3:19AM

Interesting. I would open a case with TAC just to ensure what you're running into is a normal behavior or not. (from ethernet)

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