For Cisco 2921, which module is the correct one if I have 2x E1 handoff from provider for data-only MLPPP? If I don't need voice, would I still need to buy a uc license to use the VWIC3?VWIC3-2MFT-T1/E1HWIC-2CE1T1-PRI Thanks. 

I have a Cisco 2911 router that needs to do T1 PRI with 32 voice DSPs.I think I need UC license and VWIC3-1MFT-T1/E1=. I don't see any onboard DSP in "show inv" or "show diag" so is it correct I need to purchase a PVDM2-32? Should this be installed o...

[SW1]G1/1----------------G1/0/1[SW2] I have two switches trunked with a cat5e cable. I am seeing loopguard blocking on SW2 every few minutes which is interrupting user connections because the port goes into inconsistent state for a few seconds. It se...