Hello,We observed PIX firewall constantly sends out gratuitous ARP for its own IP address every 5 seconds.Is it normal?If so,what's the purpose?BTW,we have a pair of PIX .Thanks.

Hello,We are using Cat 6513 still running hybrid mode.When I used "sho cam" command to trace a specific computer's connecting port,I got the following results:CAT6513> (enable) sho cam 0011.25ab.dd75* = Static Entry. + = Permanent Entry. # = System E...

Hello,Normally we use daisy chain to interconnect our 2950 switches in wiring closet,such as Switch-1 G0/1 link to backbone,G0/2 to Switch-2 G0/1,Switch-2 G0/2 to Switch-3 G0/1,etc.I just wonder is there a limit how many switches can be daisy chained...

Hi,there,I need to install a redundant 400W AC power supply to Cat4003(Currently it's up and running with only one power supply).Do I need shut down the switch to do so or can I just install the 2nd power while the first power is on?Thanks