Voice Gateway Connectivity issue

[shazeb051]

Dear All,

VG connectivity problem:

I have two core switch nexus 700 and one voice gateways.. VG also having two giga ports i connected one two one core with management ip. Now i have to connect to core2.. But for other port in VG i am unable to give same range of ip as management.The 1&2 are redundant to each other. in VG Its says ip over loops with management vlan ip. if i give any other range its not taking management vlan ip.

Suppose Vg ip is 11.11.14.3 and management is 11.11.14.0 and core 1 is 11.11.14.11How can i connect to 2nd core with same Vg???

[Jonathan Schulenberg]

General IP routing rules apply here: you need to decide whether to do redundancy at Layer 2 with an SVI and EtherChannel on the VG along with a vPC on the Nexus 7k switches; or, at Layer 3 with two /30 routed links and a /32 Loopback. All of your voice protocols (eg SIP, MGCP, SCCP) would then be bound to the SVI or Loopback interface. Normally the Loopback address is also considered the management address as well.

[shazeb051]

Hi jonathan,

i have spanning tree with hsrp in both nexus. shall i change subnet in vg??

regards.