About grahammj1

grahammj1 · 12-10-2013

I'm using a SG300-52MP Cisco Layer 3 switch.Here is the situation - each port is configured with "switchport trunk allowed vlan add 10" (vlan 1 is the default and vlan 10 is our voice vlan).When the phone boots up - it seems to encounter a broadcast ...

grahammj1 · 11-21-2013

I'm not exactly sure what is going on with my setup, but I have a voice lan that works where the phone is on 192.168.99.x (vlan 10) and the PC is on 192.168.1.x (vlan 1). The issue that I'm having is when the phone initially boots up - I can ping it...

grahammj1 · 12-17-2013

Thanks for the reply - yes I did save it. All the other ports have the command. But when the phone boots up - it ends up disappearing after the above occurs: When the phone boots up - it seems to encounter a broadcast storm (???) the port goes from...

grahammj1 · 12-17-2013

Not sure if this helps or not - but the phone worked perfectly all week until the switch had to be rebooted. Upon reboot, the same thing as above happened. To get the phone working, all I had to do was issue the 'switchport trunk allowed vlan add 1...

grahammj1 · 12-05-2013

Thanks for the reply guru - sorry I was out of town.These are sip phones - and connect directly to our asterisks server. Again the issue that I'm having is sort of weird. The phone gets the correct vlan IP address - the computer gets the correct vl...

Member Since	‎11-21-2013 10:24 AM
Date Last Visited	‎08-18-2017 04:27 AM
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Problem with "switchport trunk allowed vlan add"

SG300-52MP Voice LAN routes initially then fails

Problem with "switchport trunk allowed vlan add"

Problem with "switchport trunk allowed vlan add"

SG300-52MP Voice LAN routes initially then fails