Wired Intelligent Edge (Campus Switching and Routing)

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Aruba Employee

VSF with non-standard transceivers

This documents the use of an unsupported, third-party, non-standard transceiver as part of a VSF link between two 2930F switches. In this case, an 8Gb Qlogic fibre channel transceiver.


Whilst it is technically possible, it is strongly recommended that this is NOT done - the VSF link is too important to leave to chance, and the appropriate AOS-S transceivers (optics or DACs) should always be used.
However, I can think of two scenarios where this may be useful, and the best thing is, we give you the choice!

  1. Lab/test environment where there is nothing else available (my situation)
  2. A specific niche optic for a particular connection use-case (eg CWDM) that is not sold by HPE.

Unsupported Transceivers
The use of unsupported transceivers is allowed on certain ArubaOS-Switch models using this command (for at least some transceivers, a reboot may be required):

allow-unsupported-transceiver

However, as is evident in the name and the specific warning that is displayed, third-party transceivers are not supported, and any damage caused by them may not be covered by the switch warranty. Note that the possibility of damage is real; for instance some transceivers available draw more power than is permitted by the spec, and can cause heat-related damage and failure.

 

Additional information available in Rob Haviland's post.

 

VSF
Configuring VSF is pretty straightforward:

  • configure member 1
  • reset member 2
  • connect VSF links

This will not work with unsupported transceivers in member 2, because the reset will remove the "allow-unsupported-transceiver" command.

 

On the member 2 switch, you may see errors like this:

I 01/01/90 00:01:10 00076 ports: port 9 is now on-line
W 01/01/90 00:01:08 00533 FFI: port 10 is not a Aruba transceiver. Please go to:
            https://www.hpe.com/us/en/networking.html for more info.

On the member 1 commander, you may see errors like this:

I 01/01/90 00:08:17 04988 vsf: ST1-CMDR: VSF link 1 port 1/9 up: Peer validated
I 01/01/90 00:06:39 04992 vsf: ST1-CMDR: VSF port 1/9 is down
I 01/01/90 00:06:39 04992 vsf: ST1-CMDR: VSF port 1/10 is down
I 01/01/90 00:04:34 04992 vsf: ST1-CMDR: VSF port 1/10 is in error state
W 01/01/90 00:04:34 04982 vsf: ST1-CMDR: VSF port failure on link 1 port 1/10:
            Peer port 10 is not VSF enabled

With just one unsupported transceiver (port 2/10), this is the VSF output:

groupn# sh vsf link detail

 VSF Member: 1     Link: 1

 Port     State
 -------- ------------
 1/9      Up: Connected to port 2/9
 1/10     Error: No response from peer



 VSF Member: 2     Link: 1

 Port     State
 -------- ------------
 2/9      Up: Connected to port 1/9

Suggested Process

 

  1. Have the switches next to each other for the initial setup
  2. Configure member 1
  3. Include the "allow-unsupported-transceiver" command in the config
  4. Use at least one supported transceiver (optic pair/DAC) to complete the VSF stack with member 2
  5. Both switches should now have the shared config that includes "allow-unsupported-transceiver"
  6. Introduce the third-party transceivers
  7. Relocate the switches if required

 

Output from working system

 

groupn# sh vsf

 VSF Domain ID    : 123
 MAC Address      : 94f128-8bf925
 VSF Topology     : Chain
 VSF Status       : Active
 Uptime           : 0d 0h 14m
 VSF MAD          : None
 VSF Port Speed   : 10G
 Software Version : WC.16.07.0002

 Mbr
 ID  MAC Address       Model                                 Pri Status
 --- ----------------- ------------------------------------- --- ---------------
 *1  94f128-8bf920     Aruba JL258A 2930F-8G-PoE+-2SFP+ S... 255 Commander
  2  b05ada-9843d0     Aruba JL258A 2930F-8G-PoE+-2SFP+ S... 128 Standby

groupn# sh int br

 Status and Counters - Port Status

                          | Intrusion                           MDI  Flow Bcast
  Port         Type       | Alert     Enabled Status Mode       Mode Ctrl Limit
  ------------ ---------- + --------- ------- ------ ---------- ---- ---- -----
  1/1          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/2          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/3          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/4          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/5          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/6          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/7          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/8          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  1/9          SFP+DA1    | No        Yes     Up     10GigFD    NA   off  0
  1/10         SFP+SR     | No        Yes     Up     10GigFD    NA   off  0
  2/1          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/2          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/3          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/4          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/5          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/6          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/7          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/8          100/1000T  | No        Yes     Down   1000FDx    Auto off  0
  2/9          SFP+DA1    | No        Yes     Up     10GigFD    NA   off  0
  2/10*        SFP+SR     | No        Yes     Up     10GigFD    NA   off  0
 * third-party transceiver

groupn(config)# sh vsf link detail

 VSF Member: 1     Link: 1

 Port     State
 -------- ------------
 1/9      Up: Connected to port 2/9
 1/10     Up: Connected to port 2/10



 VSF Member: 2     Link: 1

 Port     State
 -------- ------------
 2/9      Up: Connected to port 1/9
 2/10     Up: Connected to port 1/10

groupn# sh tech transceivers
Cmd Info : show tech transceivers

transceivers

Transceiver Technical Information:
 Port # | Type      | Prod #     | Serial #         | Part #
 -------+-----------+------------+------------------+----------
 1/9    | SFP+DA1   |     J9281D | CN91KBZF06       | 8121-1300
 1/10   | SFP+SR    |     J9150A | CN69G622L2       | 1990-4391
 2/9    | SFP+DA1   |     J9281D | CN91KBZF06       | 8121-1300
 2/10  *| SFP+SR    |            |                  |

* third-party transceivershow time
Mon Jan  1 00:17:39 1990

Current Config

 

; hpStack_WC Configuration Editor; Created on release #WC.16.07.0002
; Ver #14:01.4f.f8.1d.9b.3f.bf.bb.ef.7c.59.fc.6b.fb.9f.fc.ff.ff.37.ef:02
hostname "groupn"
vsf
   enable domain 123
   member 1
      type "JL258A" mac-address 94f128-8bf920
      priority 255
      link 1 1/9-1/10
      link 1 name "I-Link1_1"
      link 2 name "I-Link1_2"
      exit
   member 2
      type "JL258A" mac-address b05ada-9843d0
      priority 128
      link 1 2/9-2/10
      link 1 name "I-Link2_1"
      link 2 name "I-Link2_2"
      exit
   port-speed 10g
   exit
snmp-server community "public" unrestricted
vlan 1
   name "DEFAULT_VLAN"
   untagged 1/1-1/8,2/1-2/8
   ip address dhcp-bootp
   ipv6 enable
   ipv6 address dhcp full
   exit
allow-unsupported-transceiver

 



Richard Litchfield, HPE Aruba
Consulting System Engineer
Network Ambassador
Aruba Employee

Re: VSF with non-standard transceivers

Additional Testing

I also tried

  • 3m Comware/HPE/ISS DAC (did not work LEDs started green, then went orange)
  • 3m Arista DAC (did not work)
  • 1m HP/ISS DAC (did work)

It probably highlights the variability of DACs as much as anything.

 

3m Comware DAC or Arista 3m DAC

In port 1/10, 2/10

groupn# sh vsf link detail

 VSF Member: 1     Link: 1

 Port     State
 -------- ------------
 1/9      Down
 1/10     Up: Connected to port 2/10



 VSF Member: 2     Link: 1

 Port     State
 -------- ------------
 2/9      Down
 2/10     Up: Connected to port 1/10

groupn# sh int transceiver

Transceiver Technical Information:

                     Product      Serial             Part
 Port    Type        Number       Number             Number
 ------- ----------- ------------ ------------------ ----------
 1/9   * SFP+DAC       ??         unsupported
 1/10    SFP+SR      J9150A       CN69G622L2         1990-4391
 2/9   * SFP+DAC       ??         unsupported
 2/10  * SFP+SR

* third-party transceiver

1m HP/ISS DAC

This one was labelled HP, with a 6-3 P/N (487654-001)

groupn# sh vsf link detail

 VSF Member: 1     Link: 1

 Port     State
 -------- ------------
 1/9      Up: Connected to port 2/9
 1/10     Up: Connected to port 2/10



 VSF Member: 2     Link: 1

 Port     State
 -------- ------------
 2/9      Up: Connected to port 1/9
 2/10     Up: Connected to port 1/10


groupn# sh int transceiver

Transceiver Technical Information:

                     Product      Serial             Part
 Port    Type        Number       Number             Number
 ------- ----------- ------------ ------------------ ----------
 1/9     SFP+DA1     487652       11110769
 1/10    SFP+SR      J9150A       CN69G622L2         1990-4391
 2/9     SFP+DA1     487652       11110769
 2/10  * SFP+SR

* third-party transceiver
groupn# sh int transceiver detail

Transceiver in 1/9
   Interface Index    : 9
   Type               : SFP+DA1
   Model              : 487652
   Connector Type     : Vendor specific
   Wavelength         : n/a
   Transfer Distance  : 1m (copper),
   Diagnostic Support : None
   Serial Number      : 11110769

Transceiver in 1/10
   Interface Index    : 10
   Type               : SFP+SR
   Model              : J9150A
   Connector Type     : LC
   Wavelength         : 850nm
   Transfer Distance  : 80m (50um), 30m (62.5um), 300m (50um OM3),
   Diagnostic Support : DOM
   Serial Number      : CN69G622L2

 Status
   Temperature : 37.441C
   Voltage     : 3.3926V
   Tx Bias     : 5.236mA
   Tx Power    : 0.5939mW, -2.263dBm
   Rx Power    : 0.2713mW, -5.665dBm

Transceiver in 2/9
   Interface Index    : 62
   Type               : SFP+DA1
   Model              : 487652
   Connector Type     : Vendor specific
   Wavelength         : n/a
   Transfer Distance  : 1m (copper),
   Diagnostic Support : None
   Serial Number      : 11110769

Transceiver in 2/10*
   Interface Index    : 63
   Type               : SFP+SR
   Model              :
   Connector Type     :
   Wavelength         :
   Transfer Distance  :
   Diagnostic Support : None
   Serial Number      :
* third-party transceiver


Richard Litchfield, HPE Aruba
Consulting System Engineer
Network Ambassador
Highlighted
MVP Expert

Re: VSF with non-standard transceivers

Nice find.

I have build the VSF by manual config to include the allow-unsupported. I didn’t have original optics in my lab at the time. 🙈

Cheers, Frank
AirHeads MVP Expert | Aruba Partner Ambassador| AMFX#22| ACCX#613| ACMX#733| ACDX#744

If you like my posts, kudo's are welcome. If it solves your problem, please click 'Accept as Solution'
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