Network design, architecture, thinking, working. Tech.
There is a significant numbers of ASA5110 chassis that have been reworked to look and act like ASA5520 or ASA5540 firewalls. Refer this bug toolkit for more details.
I’ve been doing some research into Ethernet and the use of Jumbo frames for some content I’ve been writing and come across something interesting. The documents state that Jumbo frames can only be used on Full Duplex Ethernet connections.
I got this question and I guess it may not be obvious to everyone so I’ll have a shot at answering it.
Technology advances in ASIC hardware have resulted in substantial improvements in switching performances of routers and switches. However, the routing processes are still dependent on CPU speeds. What are the existing limitations in router/switch models which prevent route computations from being performed in hardware?
Saw this modular data centre rolling down the highway today.
HP Networking has announced no more software licenses on their networking kit.
A short summary of the Fibre Cable Connectors, description and some notes on usage. This is summary notes and intended for reference.
When you first receive a router from a Cisco warehouse, it comes with a complete collection of IOS add ons. A common question is whether these files are used for anything ?
Why does a Cisco IOS SX switch not let you use VLANs 1002 − 1005 ?
Found this in the Cisco IOS 15.1M manuals today
IP Routing: EIGRP Configuration Guide, Cisco IOS Release 15.1M&T
Goodbye Message
The goodbye message is a feature designed to improve EIGRP network convergence. The goodbye message is broadcast when an EIGRP routing process is shut down to inform adjacent peers about the impending topology change. This feature allows supporting EIGRP peers to synchronize and recalculate neighbor relationships more efficiently than would occur if the peers discovered the topology change after the hold timer expired.
Once upon a time the command was “show ip eigrp topology” to show EIGRP topology, now it’s “show ip eigrp topology all” and the old command show only Feasible Successors.
