Hi community, I am facing problem connecting X440 48 to X620.

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Hi community, I am facing problem connecting X440 48 to X620. All 48 ports of X440 working fine, but from 49 to 52 not working? please advise to resolve this issue.
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Sikander Shah

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Posted 2 years ago

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Adilson Gal, Employee

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Please, define what you mean by "not working." Provide details about your observations and troubleshooting you have already done that have led you to the conclusion that those ports are not working. Thanks.
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Sikander Shah

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we want uplink between two switches. but we are using x440, ports are 49 to 52 with x620
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Henrique, Employee

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Hi Sikander, I have some questions:
  1. Can you see port link-up? If yes, are you facing port flap or packet drops?
  2. Is there any error log message?
  3. Please share the output for "show port <uplink_ports> configuration no-refresh" for both X440 and X620
Thanks.
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Sivadas Deepak

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Port     Virtual    Port  Link  Auto   Speed      Duplex   Flow  Load   Media         router     State State Neg  Cfg Actual Cfg Actual Cntrl Master Pri Red
================================================================================
25       VR-Default  E      R   OFF 10000       FULL                    NONE
26       VR-Default  E      R   OFF 10000       FULL                    NONE
27       VR-Default  E      R    ON  AUTO       AUTO                    SF+_SR
28       VR-Default  E      R    ON  AUTO       AUTO                    SF+_SR
================================================================================
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Sivadas Deepak

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this is for x440 g2 24p 10ge4
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Sivadas Deepak

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Port     Virtual    Port  Link  Auto   Speed      Duplex   Flow  Load   Media         router     State State Neg  Cfg Actual Cfg Actual Cntrl Master Pri Red
================================================================================
1        VR-Default  E      A   OFF 10000 10000 FULL FULL   NONE        SF+_SR
2        VR-Default  E      A   OFF 10000 10000 FULL FULL   NONE        SF+_SR
3        VR-Default  E      R   OFF 10000       FULL                    SF+_SR
4        VR-Default  E      R   OFF 10000       FULL                    SF+_SR
================================================================================
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Sivadas Deepak

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this is for x620 16x
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Sikander Shah

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Dears Henrique, and AG

Below are the details and design.    

 ·         MDF1 and MDF2 are adjacent racks in the server room and two racks are linked via Fiber.

·         X 620 Core1 and X620 Core 2 are connected to each other via ports 15 & 16 and link aggregation enabled. Port 15 – port 15 and port 16 – port 16.

·         In all X440 switches there are 48 ports in the front which is fully utilized from 1-48.

·         4 No’s of 10Ge ports are available in the back, 49-52.

·         What we tried to do is, in MDF1 we wanted to stack the 3 X440 and in MDF2 another stack.

·         As per documentation, in X440 we can only use ports 51 & 52 for stacking.

·         As per our design, on uplink from core 1 and I uplink from core 2 should reach each of the X440 in each stack.

·         But since ports 51 & 52 are currently marked for stacking, we plugged uplink at 49 – 50 ports.

·         But ports are not enabling.

·         Whereas if we are plugging in the uplink cable to ports 51 – 52, it works.

·         One more think we noticed is when 2 uplinks are provided from core 1 / core 2 to X440 we are getting packet loses.

·         This is the current situation.

·         Also we have IDF1 / IDF2 / IDF3 where we have about one switches each which need to be connected to core 1 and core 2.

 

(Edited)
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Sivadas Deepak

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Enabled License Level:        Edge
Enabled Feature Packs:
        Dual 10G Uplink

Port     Virtual    Port  Link  Auto   Speed      Duplex   Flow  Load   Media         router     State State Neg  Cfg Actual Cfg Actual Cntrl Master Pri Red
================================================================================
25       VR-Default  E      R   OFF 10000       FULL                    NONE
26       VR-Default  E      R   OFF 10000       FULL                    NONE
27       VR-Default  E      R    ON  AUTO       AUTO                    SF+_SR
28       VR-Default  E      R    ON  AUTO       AUTO                    SF+_SR
================================================================================
(Edited)
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Sivadas Deepak

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yes, couple of times. had faced the same issue in X440-g2-48p

but that got rectified after a restart.
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Erik Auerswald, Embassador

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Hm, the basics seem to be OK (enable license, reboot switch). But the SFP+ seem not to be recognized (I cannot see any in the above output for the non-stacking ports 25 and 26). :-(
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Sivadas Deepak

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currently no modules are there in 25 & 26. WE had tried earlier in 25 & 26 ports, but no link.
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Drew C., Community Manager

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Hello - is there any update to this thread?
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Sivadas Deepak

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Hello - For uplink, we used ports 25-26 and it started working after several restarts. For stacking we are using 27-28 ports.