Dear Support Team
I have a question if there is any specification between EX2200 and EX3400 series switch.
In case of EX Virtual Chassis with Non-STP condition. Basically if EX Virtual Chassis Switch does not have STP or RSTP
but make one access port and access vlan on each EX switch then in my understand the EX virtual chassis switch is just one broadcast domain like L1-HUB
so on the Cat2960X side which is enable STP or RSTP the Cat2960X can be possible to receive BPDU through EX VCP-port and can designate Forwarding and Blocking Port.
I appreciate if you can let me know any feedback.
Best Regards,
Masanobu Hiyoshi
[products]
H/W : EX3400-24p & EX3400-t
S/W : 15.1X53-D50.2
*The virtual chassis connection is 10G-SR Uplink Port.
or
H/W : EX2200-24t-4g x 2
S/W : 12.3R12.4
*The virtual chassis connection is 1G_GLC-T Uplink Port.
[topology]
EX-1--ge-0/0/0------Gi1/0/1--Cat2960X
| vcp-port | (RSTP enable for VLAN10)
EX-2--ge-1/0/0------Gi1/0/2---
[Configuration]
request virtual-chassi vc-port command with the following configuration.
set interfaces ge-0/0/0 unit 0 family ethernet-switching interface-mode access
set interfaces ge-0/0/0 unit 0 family ethernet-switching vlan members VLAN_10
set interfaces ge-1/0/0 unit 0 family ethernet-switching interface-mode access
set interfaces ge-1/0/0 unit 0 family ethernet-switching vlan members VLAN_10
set vlans VLAN_10 vlan-id 10
set interfaces irb unit 10 family inet address 10.0.10.254/24
set vlans VLAN_10 l3-interface irb.10
or
set interfaces vlan unit 10 family inet address 10.0.10.254/24
set vlans VLAN_10 l3-interface vlan.10
[verification]
root@EX> show virtual-chassis
*omit
Member ID Status Serial No Model prio Role Mode Mode ID Interface
0 (FPC 0) Prsnt NWXXXXX ex3400-24p 128 Backup N VC 1 vcp-255/2/1
1 (FPC 1) Prsnt NVXXXXX ex3400-24t 128 Master* N VC 0 vcp-255/2/1
root@EX> show virtual-chassis
*omit
Member ID Status Serial No Model prio Role Mode ID Interface
0 (FPC 0) Prsnt CW0XXXXX ex2200-24t-4g 129 Backup NA 1 vcp-255/1/0
1 (FPC 1) Prsnt CW0XXXXX ex2200-24t-4g 129 Master* NA 0 vcp-255/1/0
root@EX> show spanning-tree bridge
Spanning-tree is not enabled at global level.
#######################################################################################
*The following output is between EX3400 and Cat2960X, no blocking port
Cat2960X#sh spanning-tree
VLAN0010
Spanning tree enabled protocol rstp
Root ID Priority 32778
*omit
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Desg FWD 4 128.1 P2p
Gi1/0/2 Desg FWD 4 128.2 P2p
#######################################################################################
*The following output is between EX2200 and Cat2960X, blocking port
Cat2960X#sh spanning-tree
VLAN0010
Spanning tree enabled protocol rstp
Root ID Priority 32778
*omit
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Gi1/0/1 Desg FWD 4 128.1 P2p
Gi1/0/2 Back BLK 4 128.2 P2p
#######################################################################################