ProCurve 6120XG speed compatibility.

[akopylov]

Hello there,

I got c7000 enclosure and 2 procurve 6120XG aboard.

ProCurve 6120XG Switch Left# show version
Image stamp:    /ws/swbuildm/Z_zinfandel_fip_t4b_qaoff/code/build/vern(Z_zinfand
el_fip_t4b_qaoff)
                Apr 29 2015 12:51:16
                Z.14.52
                2620
Boot Image:     Primary

I need to connect these switches to 100 mb ports of 3com 4400, however when I put the cable into ports there is no link. Procurve ports are enabled, if I connect procurve to 1g switch (not 3com 4400) then link is up and if I connect 3com 4400 to another 1g switch link is up too. I guess problem is in speed compatibility, procurve ports are adjusted to auto:

ProCurve 6120XG Switch Left# show interfaces config

 Port Settings

  Port  Type      | Enabled Mode         Flow Ctrl MDI
  ----- --------- + ------- ------------ --------- ----
  1     10GbE-K   | Yes     Auto         Enable    0
  2     10GbE-K   | Yes     Auto         Enable    0
  3     10GbE-K   | Yes     Auto         Enable    0
  4     10GbE-K   | Yes     Auto         Enable    0
  5     10GbE-K   | Yes     Auto         Enable    0
  6     10GbE-K   | Yes     Auto         Enable    0
  7     10GbE-K   | Yes     Auto         Enable    0
  8     10GbE-K   | Yes     Auto         Enable    0
  9     10GbE-K   | Yes     Auto         Enable    0
  10    10GbE-K   | Yes     Auto         Enable    0
  11    10GbE-K   | Yes     Auto         Enable    0
  12    10GbE-K   | Yes     Auto         Enable    0
  13    10GbE-K   | Yes     Auto         Enable    0
  14    10GbE-K   | Yes     Auto         Enable    0
  15    10GbE-K   | Yes     Auto         Enable    0
  16    10GbE-K   | Yes     Auto         Enable    0
  17    1000T-SFP | Yes     Auto         Disable   0
  18    1000T-SFP | No      Auto         Disable   0
  19    1000T-SFP | No      Auto         Disable   0
  20              | Yes                  Disable   0
  21              | Yes                  Disable   0
  22              | Yes                  Disable   0
  23    10GbE-K   | No      Auto         Enable    0
  24    10GbE-K   | No      Auto         Enable    0

So when I try to set another speed I get:

ProCurve 6120XG Switch Left(config)# interface 19 speed-duplex
 10-half               10 Mbps, half duplex.
 100-half              100 Mbps, half duplex.
 10-full               10 Mbps, full duplex.
 100-full              100 Mbps, full duplex.
 1000-full             1000 Mbps, full duplex.
 auto                  Use Auto Negotiation for speed and duplex mode.
 auto-10               10 Mbps, use Auto Negotiation for duplex mode.
 auto-100              100 Mbps, use Auto Negotiation for duplex mode.
 auto-1000             1000 Mbps, use Auto Negotiation for duplex mode.
 auto-10-100           10 or 100 Mbps, and half or full duplex, using Auto
                       Negotiation.
ProCurve 6120XG Switch Left(config)# interface 19 speed-duplex 100-full
Value 100-full is not applicable to port 19.
ProCurve 6120XG Switch Left(config)#

And this speed is not applicable for all ports not only for external. Is it possible that options for 10/100 remained from old version of procurve image and procurve 6120XG is not compatible with 100mb switches at all?

P.S. Also I can`t find speed option in web management console of procurve.

[Jayooin · Accepted solution]

Hello,

It is most probably your SFP transceiver which isn't capable of this mode. Usually, SFP transceivers are operating in 1-10Gb, you would need special ones to operate at lower speed like 10/100 mb.

You should look into a comptatible SFP transceiver. Good luck

[akopylov]

Hello Jayooin.

Thanks for your answer, I guess you are right. Shame on me that I didnt think about SFP.