[j-nsp] EX4200 VC odd routing issues

[Bill Blackford]

EX4200-24T X2 (VC) Layer3
10.1R1.8

EX3200-48T (switch1 and switch2) Layer2 rack switches.
10.0S1.1



I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen.

Problem 1. Inter-vlan routing.
	I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change.




Problem 2. (separate issue) Multicast on same switch/same vlan.
	I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. 


Thank you in advance for any shred thoughts.

-b

--
Bill Blackford                     
Senior Network Engineer            
Technology Systems Group           
Northwest Regional ESD             

Logged into reality and abusing my sudo priviledges