I have a "Cisco 2-Port T1/E1 Protection Switching RAN Voice/WAN
Interface Card" and I am trying to get the ports into Data Carrier Detect (DCD) mode. The document indicated that the port is RJ-48C. The pins are as follows:
PIN1: RX Ring
PIN2: RX Tip
PIN4: TX Ring
PIN5: TX Tip
So only pins 1,2,4 and 5 are used. However, I tried many cables, and the ports refuse to come up, when connected to each other.
We have the ALU SAR-8, and we are able to connect the RJ-48 cables without issue. Below is my configuration. Why won't the port come up? I have them in loopback diag mode, for now. Do I need a special cable?
This document gives several answers on frequently asked questions for PFRv3 channel state behavior.
Q1: What are all the channel operational states from a BR (border role) perspective and what are the rules/conditions to be in each st...
The need was to reach an host inside a LAN through a VPN connection managed by the LAN gateway (Cisco 1921).
The LAN gateway performs NAT and there was a dedicate nat rule for the host i wanted to reach through VPN.
I couldn't connect to the hos...
We have 3 identical switches configured by someone else and would like to claim some of the Gigabit ports(G1/G2/G3/G4) for use on servers. When we try to change the wiring and configuration, we run in to connectivity issues. Attached is a des...