Hi, I have a problem with a router with 4 ISDN PRI links for incoming VoIP calls. The problem that I am facing is that in a day, my ISDN status flaps between 'Multiple_Frame_Established' status to 'TEI_Assigned'. This happens once or twice in a day. ...

Hi,I need to implement ISDN redundancy in the following scenario.I have a Edge Router which has a BRI interface. The router gets Routes from the Core Router where the Servers are kept which would be accessed from the people located behind the Edge Ro...

Dear All,I have 2 3750 switches on which I need to configure HSRP for 26 VLANS.I have tried configuring one group for vlan 1 - 16 & second group next 16 VLANS. But i still get the error 'platform does not support more than 32 hsrp groups'What seems t...

Hi All,I have a query regarding the entry of duplicate MAC entries in switch. I tried issuing the following command:-Switch(config)#mac address-table static 0007.e9f6.4fd2 vlan 1 interface fa0/2Switch(config)#mac address-table static 0007.e9f6.4fd2 v...

Hi guys,I have a 3660 router for which the flash memory was upgraded. It was upgraded from 2x16 MB to 2x32 MB. But after the upgrade, I am getting the following error while uploading IOS image through xmodem. The message is:" erasing flash at 0x30000...