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Nortel/Avaya ERS 5500/5510/5520 – EOL/EOS

The Avaya (formerly Nortel) Ethernet Routing Switch (ERS) has reached end of life and end of sale. The recommended replacement model is the ERS 5900 series switches. Models ERS 5510-24T ERS 5510-48T ERS 5520-24T ERS 5520-48T ERS 5520-24T-PWR ERS 5520-48T-PWR…



SNMP Packet discards on Nortel/Avaya ERS 5510/5520

Recently I’ve setup a monitoring tool called Intermapper to monitor the Nortel switches I have at work. The tool polls the SNMP traffic information from the switches, and also picks up some basic error notifications received on it’s ports. On…




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Cisco ASA 8.3 RAM upgrade

The Cisco ASA 8.3 is quite a major release despite the minor version number update. One of the major feature overhaul is the NAT. NAT and statics are no longer bound to an interface. It has moved towards an network…