by default, IP Phone`s interface that connect to upstream SW is working on native vlan mode, all of traffic (include voice from itself and date from PC) are untag. people in order to distinguish between voice and data, so using different vlan to transfer voice and date. here trunk is used. for example:
switchport access vlan 100 (for date)
switchport trunk native vlan 100
switchport voice vlan 200 (for voice)
switchport trunk enc dot1q (to direct IP Phone using trunk)
exclude 4000 6000 serial, they are using DTP to auto create trunk with IP Phone.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...