Switching

I have two  EX4100s in a VC that are handling routing for a building. There are other EX4100s  in different closets around the building that are trunking all VLANs to the VC.

VC <-fiber-> Switch1 <-fiber-> Switch2 <-fiber->Back to VC.

The VC has fiber transceiver on et-0/1/0 to Switch 1 and on et-0/1/1 to Switch 2. Switch 1 and 2 are similarly connected  All three link operate as trunks.

Switches 1 and 2 don't have any IPs or routing config but I want to add a management IP to these access switches so they can be managed remotely. What is the best way to set this up? 

With the config below,  I can ping the IRB for the management VLAN  on the VC (10.1.101.1), but cannot ping outside the subnet because Switch 1 has no route to anywhere else and AFAIK I cannot specify a default gateway to 10.1.101.1.

VC

set interfaces irb unit 101 family inet address 10.1.101.1/24

set vlans DCMgmt vlan-id 101

set vlans DCMgmt l3-interface irb.101

set  interfaces et-0/1/0 unit 0 family ethernet-switching interface-mode trunk

set  interfaces et-0/1/0 unit 0 family ethernet-switching vlan members all

Switch 1

set interfaces irb unit 101 family inet address 10.1.101.2/24

set vlans DCMgmt vlan-id 101

set vlans DCMgmt l3-interface irb.101

set  interfaces et-0/1/0 unit 0 family ethernet-switching interface-mode trunk

set  interfaces et-0/1/0 unit 0 family ethernet-switching vlan members all

Thanks

Hi Jonathan,

Maybe you could add a route like this on switch 1 and switch 2:

set routing-options static route 0.0.0.0/0 next-hop 10.1.101.1

That would impact traffic on the DCMgmt vlan but would not impact traffic flowing through the switch on other vlans.  If it were me that's what I would try anyway. 

I have two  EX4100s in a VC that are handling routing for a building. There are other EX4100s  in different closets around the building that are trunking all VLANs to the VC.

VC <-fiber-> Switch1 <-fiber-> Switch2 <-fiber->Back to VC.

The VC has fiber transceiver on et-0/1/0 to Switch 1 and on et-0/1/1 to Switch 2. Switch 1 and 2 are similarly connected  All three link operate as trunks.

Switches 1 and 2 don't have any IPs or routing config but I want to add a management IP to these access switches so they can be managed remotely. What is the best way to set this up? 

With the config below,  I can ping the IRB for the management VLAN  on the VC (10.1.101.1), but cannot ping outside the subnet because Switch 1 has no route to anywhere else and AFAIK I cannot specify a default gateway to 10.1.101.1.

VC

set interfaces irb unit 101 family inet address 10.1.101.1/24

set vlans DCMgmt vlan-id 101

set vlans DCMgmt l3-interface irb.101

set  interfaces et-0/1/0 unit 0 family ethernet-switching interface-mode trunk

set  interfaces et-0/1/0 unit 0 family ethernet-switching vlan members all

Switch 1

set interfaces irb unit 101 family inet address 10.1.101.2/24

set vlans DCMgmt vlan-id 101

set vlans DCMgmt l3-interface irb.101

set  interfaces et-0/1/0 unit 0 family ethernet-switching interface-mode trunk

set  interfaces et-0/1/0 unit 0 family ethernet-switching vlan members all

Thanks