Stacking Switches

[marcolanni]

Hi,

Im trying to Connect a 2960-S Catalyst Switch to a 3560 Catalyst Switch. It worth pointing out im newish to switching although i know some commands and what they do

This is my first time connecting 2 switches together.

They are connected via a crossover cable and have green lights flashing on the connected ports

When i run "show CDP neighbours it sees the new switch

Unable to ping new switch...just timesout

Here is the the interface on the 3650

GigabitEthernet0/40 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is 001b.532f.8428 (bia 001b.532f.8428)

  Description: Uplink to Switch 2

  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:00, output 00:00:01, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 1000 bits/sec, 2 packets/sec

  5 minute output rate 3000 bits/sec, 4 packets/sec

     6579 packets input, 477123 bytes, 0 no buffer

     Received 6334 broadcasts (0 multicast)

     0 runts, 0 giants, 0 throttles

     1 input errors, 1 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 6337 multicast, 0 pause input

     0 input packets with dribble condition detected

     13864 packets output, 1323788 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 PAUSE output

     0 output buffer failures, 0 output buffers swapped out

Port        Mode         Encapsulation  Status    

Gi0/40      on           802.1q         trunking      2

Port        Vlans allowed on trunk

Gi0/40      1-4094

Port        Vlans allowed and active in management domain

Gi0/40      1-4,6-8

Port        Vlans in spanning tree forwarding state and not pruned

Gi0/40      3-4,6-8

Here is the interface on the 2960

GigabitEthernet1/0/40 is up, line protocol is up (connected)

  Hardware is Gigabit Ethernet, address is 2c3f.38b9.baa8 (bia 2c3f.38b9.baa8)

  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,

     reliability 255/255, txload 1/255, rxload 1/255

  Encapsulation ARPA, loopback not set

  Keepalive set (10 sec)

  Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX

  input flow-control is off, output flow-control is unsupported

  ARP type: ARPA, ARP Timeout 04:00:00

  Last input 00:00:01, output 00:00:00, output hang never

  Last clearing of "show interface" counters never

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 3000 bits/sec, 5 packets/sec

  5 minute output rate 1000 bits/sec, 2 packets/sec

     16674 packets input, 1591566 bytes, 0 no buffer

     Received 16336 broadcasts (13406 multicasts)

     0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored

     0 watchdog, 13414 multicast, 0 pause input

     0 input packets with dribble condition detected

     7976 packets output, 576542 bytes, 0 underruns

     0 output errors, 0 collisions, 1 interface resets

     0 babbles, 0 late collision, 0 deferred

     0 lost carrier, 0 no carrier, 0 PAUSE output

     0 output buffer failures, 0 output buffers swapped out

Port        Mode             Encapsulation  Status        Native vlan

Gi1/0/40    on               802.1q         trunking      1

Port        Vlans allowed on trunk

Gi1/0/40    1-4094

Port        Vlans allowed and active in management domain

Gi1/0/40    1-2,29,123

Port        Vlans in spanning tree forwarding state and not pruned

Gi1/0/40    29,123

Amy help would be greatfully recieved

[marcolanni]

This switch is out of the box config

[Joseph W. Doherty]

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Posting

Does the 2960 have a management IP assigned?  If if does, do both switches share an IP on the same subnet?  If not, is routing configured, and L2 switches have gateway addresses?

If the prior questions don't make sense, more information would be required to help you, and some of it might be even more complex when dealing the the 3560's configuration, as the latter can do L3.  (As also can the 2960-S, although only with recent code and many limitations.)

[Kishore Chennupati]

hi marco,

how did u go with this? did u get a chance to look at this or have u fixed it?

Regard, Kishore

[Kishore Chennupati]

Hi ,

Few things.

1. As Joe pointed out. have you configured a a mgmt SVI on the 2960 switch.

2. Have you confuigured the default gateway on the 2960 pointing to a vlan on the 2560 stack.

Essentially, the config should be as follows.

3560

vlan199

name MGMT

int vlan 199

ip address 192.168.1.254 255.255.255.0

2960:

vlan 199

name MGMT

int vlan 199

ip address 192.168.1.1 255.255.255.0

ip default-gateway 192.168.1.254

Put the above configs on the switches and then ping from the 3560 to 192.168.1.1

HTH

Kishore

[Fergus Bradfield]

The problem is that the VLANs between the 2 switches do not match on both ends of switch interconnect.

[marcolanni]

Fergus,

When you say "switch interconnect" do you mean trunk port as ive checked the vlan and its set to "Trunk" or am i barking up the wrong tree. Can i also assign a VLAN to those ports even though they are trunking?

Joseph,

No management IP has been setup on it. Let me know what information you need and i can provide. They are on the same subnet of /23 and have the same gateway setup

Kishore,

I have tried this before and it doesnt work

Thanks

Marco