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Author Topic: Stack between ERS-3524 and 3549, is it supported ?  (Read 459 times)

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Offline nortavaya

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Stack between ERS-3524 and 3549, is it supported ?
« on: May 09, 2018, 08:41:01 AM »
Hello team,

we have built a stack of two ERS 3524 and one ERS 3549, when I type (show stack health) I can see everyting is ok, then I have create VLANs on that stack, but devices on the same vlan cannot reach each other !!

when I tried with a standalone Switch either 3524 or 3549, the VLAN configuration work fine, so I think the stack is not supported bewteen two different model of ERS switches,

Please anyone can confirm ?

Thank you


Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #1 on: May 09, 2018, 08:55:57 AM »
I have stacks setup like this and they work as expected.  Anything in the 35xx series is supported with different port counts, PoE and non-PoE.  They don't have to be identical switches - just in the same series.

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #2 on: May 09, 2018, 09:42:27 AM »
Thanks orgitnized, by why I have issue with VLAN, two devices on the same vlan cannot ping each other  ???

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #3 on: May 09, 2018, 09:55:34 AM »
Can you post anything regarding the ports and the configs for those ports?
I'm assuming that these devices are in setup so 1 device is on 1 switch and 1 device is on the other switch?  Is this correct?
Showing the port programming would be something that would be helpful though, to ensure your VLAN memberships are correct on both switches as well as the PVID's.

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #4 on: May 09, 2018, 10:09:19 AM »
I think I have issue with stack, because the command (rear-ports mode stacking) is not recognized

this the connected devices:

SWA-R1(config)#show mac-address-table
Mac Address Table Aging Time: 300
Number of addresses: 8

   MAC Address    Vid      Source            MAC Address    Vid      Source
----------------- ---- --------------     ----------------- ---- --------------
14-61-2F-01-20-00    1                    14-61-2F-8B-C8-00    1
14-61-2F-02-48-42   10                    18-DB-F2-58-F8-70   10 Unit:1 Port: 6
6C-A8-49-7C-60-0D   10 Trunk: 1           A0-1D-48-A8-0D-77   10 Unit:1 Port:13
14-61-2F-02-48-01 1000                    14-61-2F-02-48-40 1000

SWA-R1(config)#


configuration of vlans:

SWA-R1(config)#show vlan
Id   Name                 Type     Protocol         PID     Active IVL/SVL Mgmt
---- -------------------- -------- ---------------- ------- ------ ------- ----
1    VLAN #1              Port     None             0x0000  Yes    IVL     No
        Port Members: NONE
10   DATA                 Port     None             0x0000  Yes    IVL     No
        Port Members: 1/ALL,2/ALL
16   VOICE                Port     None             0x0000  Yes    IVL     No
        Port Members: 1/23-24,2/23-24,3/1-47
1000 Management           Port     None             0x0000  Yes    IVL     Yes
        Port Members: 1/23-24,2/23-24,3/48
Total VLANs: 4


and then Stack informations:

SWA-R1(config)#show stack health

------------------------------------------------------------------------------
UNIT#            Switch Model       Cascade Up            Cascade Down
------------------------------------------------------------------------------
1 (Base)          3524GT            OK                    OK
2                 3524GT            OK                    OK
3                 3549GTS-PWR+      OK                    OK

------------------------------------------------------------------------------
Switch Units Found = 3
Stack Health Check = OK - RESILIENT
Stack Diagnosis = Stack in full resilient mode.


SWA-R1(config)#show ip
Bootp/DHCP Mode: Disabled

                             Configured        In Use        Last BootP/DHCP
                           --------------- --------------- --------------------
Stack IP Address:          10.12.1.11      10.12.1.11      0.0.0.0
Switch IP Address:         192.168.1.1                     0.0.0.0
Stack Subnet Mask:         255.255.255.192 255.255.255.192 0.0.0.0
Default Gateway:           10.12.1.1                       0.0.0.0
SWA-R1(config)#

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #5 on: May 09, 2018, 10:16:25 AM »
So what 2 devices cannot ping each other?
Your stacking looks healthy.
edited the post because I read again and I shouldn't have typed what I typed.  What 2 devices cannot ping each other and please provide the output for each port config for the devices.
« Last Edit: May 09, 2018, 10:18:03 AM by orgitnized »

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #6 on: May 09, 2018, 10:30:48 AM »
Thank you
The port 1/6 (unit 1 in the stack):

SWA-R1(config)#show interface 1/6 config
Unit/Port:  1/6
    Trunk:
    Admin Status:  Enable
    Oper Status:  Up
    EAP Oper Status:  Up
    VLACP Oper Status:  Down
    STP Oper Status:  Forwarding
    Link: Up
    Last Change: 0 day(s), 01h:58m:33s ago
    LinkTrap:  Enabled
    Link Autonegotiation:  Enabled
    Link Speed:  100Mbps
    Link Duplex:  Full-Duplex
    Flow Control:  Disable
    Energy Saver: Disabled
    Energy Saver Oper Status: No Power Saving
    BPDU-guard (BPDU Filtering): Disabled
    BPDU-guard (BPDU Filtering) Oper Status: N/A
    SLPP-guard: Disabled
    SLPP-guard Oper Status: N/A
    Mdix Mode: Auto

*****VLAN interfaces configuration*****
           Filter     Filter
          Untagged Unregistered
Unit/Port  Frames     Frames    PVID PRI    Tagging    Name
--------- -------- ------------ ---- --- ------------- ----------------
1/6       No       Yes          10   0   UntagAll      Unit 1,Port 6

*****VLAN ID port member configuration*****
Unit/Port VLAN VLAN Name         VLAN VLAN Name         VLAN VLAN Name
--------- ---- ----------------  ---- ----------------  ---- ----------------
1/6       10   DATA
--------- ---- ----------------  ---- ----------------  ---- ----------------

*****Spanning-tree port configurations*****
Unit Port Trunk   Participation   Priority  Path Cost    State
---- ---- -----  ---------------  --------  ---------  ----------
1    6           Normal Learning  128       10         Forwarding
SWA-R1(config)#


cannot ping the port 1/13 (unit 1 in the stack), below its config:

SWA-R1(config)#show interface 1/13 config
Unit/Port:  1/13
    Trunk:
    Admin Status:  Enable
    Oper Status:  Up
    EAP Oper Status:  Up
    VLACP Oper Status:  Down
    STP Oper Status:  Forwarding
    Link: Up
    Last Change: 0 day(s), 01h:59m:35s ago
    LinkTrap:  Enabled
    Link Autonegotiation:  Enabled
    Link Speed:  1000Mbps
    Link Duplex:  Full-Duplex
    Flow Control:  Asymm
    Energy Saver: Disabled
    Energy Saver Oper Status: No Power Saving
    BPDU-guard (BPDU Filtering): Disabled
    BPDU-guard (BPDU Filtering) Oper Status: N/A
    SLPP-guard: Disabled
    SLPP-guard Oper Status: N/A
    Mdix Mode: Auto

*****VLAN interfaces configuration*****
           Filter     Filter
          Untagged Unregistered
Unit/Port  Frames     Frames    PVID PRI    Tagging    Name
--------- -------- ------------ ---- --- ------------- ----------------
1/13      No       Yes          10   0   UntagAll      Unit 1,Port 13

*****VLAN ID port member configuration*****
Unit/Port VLAN VLAN Name         VLAN VLAN Name         VLAN VLAN Name
--------- ---- ----------------  ---- ----------------  ---- ----------------
1/13      10   DATA
--------- ---- ----------------  ---- ----------------  ---- ----------------

*****Spanning-tree port configurations*****
Unit Port Trunk   Participation   Priority  Path Cost    State
---- ---- -----  ---------------  --------  ---------  ----------
1    13          Normal Learning  128       1          Forwarding

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #7 on: May 09, 2018, 10:42:20 AM »
Thanks.  What does this output show?
Code: [Select]
show mac-address-table port 1/6,1/13

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #8 on: May 09, 2018, 10:45:50 AM »
SWA-R1(config)#show mac-address-table port 1/6,1/13

Mac Address Table Aging Time: 300
Number of addresses: 2

   MAC Address    Vid      Source            MAC Address    Vid      Source
----------------- ---- --------------     ----------------- ---- --------------
18-DB-F2-58-F8-70   10 Unit:1 Port: 6     A0-1D-48-A8-0D-77   10 Unit:1 Port:13

SWA-R1(config)#

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #9 on: May 09, 2018, 11:10:12 AM »
Thanks - so both devices look fine in the config.  Where are you trying to ping from?  Are you trying to ping the devices from each other or another device?

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #10 on: May 09, 2018, 11:12:58 AM »
No, I tried device from each other
for example PC1 ping to PC2 and vice versa

may be can be issue with stack cabling ???

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #11 on: May 09, 2018, 11:18:38 AM »
I wouldn't suspect it, with both devices being in the same physical switch, but as networking has taught me - not everything is as it seems.
I don't see anything immediately wrong with your config on the switch itself.
  • Devices are in the same VLAN
  • Devices are tagged properly
  • Devices have proper PVID
  • Show VLAN shows it's active
And everything works if you break the stack, right?...I have had bad stack issues, but not like this before.
And for the heck of it, using a different switch shows the same results, correct?

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #12 on: May 09, 2018, 11:31:14 AM »
Yes, the only option I have for the moment is to reset the stack config, do correct cabling of stack, configure from scratch

I will let you know the reslut

many thanks for your support

Offline nortavaya

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #13 on: May 09, 2018, 12:14:17 PM »
Hi orgitnized

I found the solution, I have disable the ARP-inspection in the vlan 10, the ping works fine  :)

no ip arp-inspection vlan 10

Thank you a lot

Offline orgitnized

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Re: Stack between ERS-3524 and 3549, is it supported ?
« Reply #14 on: May 09, 2018, 01:25:11 PM »
Ah, thanks so much for posting what it was :)