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New Member

Additional cards on PIX 535 with UR license

Good day to each and everyone.

I just would like to inquire about adding a couple of cards on a PIX 535 with UR license with a 6.3(5) OS.

Currently, the firewall has the following:

one (1) 4 FE + four (4) 1 FE + 1 VPN Accelerator Card Plus (VAC+)

The choices would be the following:

a. 1 4-port FE card + 6 FE + 1 VPN Accelerator ( Additional 2 FE interfaces )

b. 2 GE + 4 FE + 1 4-port FE + 1 VPN Accelerator (Additional 2 GE interfaces)

My worry would be is how much impact would these additional interface to the PIX 535?

a . Additional two (2) FE cards

b. Additional two (2) GE cards

Could anybody enlighten me on this?



Re: Additional cards on PIX 535 with UR license

PIX 535 has

Slots 0 and 1 Bus 0 64-bit/66 MHz

Slots 2 and 3 Bus 1 64-bit/66 MHz

Slots 4 to 8 Bus 2 32-bit/33 MHz

4FE and 1 FE cards use 32-bit/33 Mhz

VAC+ uses 64-bit/66 MHz....

So your are using 5 (all available 32-bit/33 MHz) and one 64-bit/66 MHz

In other words you have free 3 64-bit/66 Mhz buses

A)You want to add 2 FE - so you need place those cards to 64-bit/66 MHz

Cisco says to this option :" If more than five 33 MHz cards are needed, they may be installed in a 64-bit/66 MHz bus, but doing so will lower that bus speed and limit the potential throughput of any 66 MHz cards installed in that bus.....

B)Cisco has two GE cards

PIX-1GE uses 64-bit/33 MHz

PIX-1GE-66 uses 64-bit/66 MHz

PIX-1GE is same issue like using 33 Mhz card in 66 Mhz bus....

PIX-1GE-66 uses 64-bit/66 MHz so no problem with installing to 64-bit/66 MHz

So all options are possible but i recommend to add two PIX-1GE-66 cards

Following link could be helpful


Hope that helps rate if it does

New Member

Re: Additional cards on PIX 535 with UR license


Hi! Good day to you.

Actually, slots 0 to 1 and slot 3 which are 64-bit/66 MHZ are still free.

I'm thinking of using those 64-bit/66MHZ slots for the for either option. My worry is not the throughput of the interfaces but the burden to the CPU usage or RAM memory (1GB). Normally the CPU usage is about 30 to 35 percent.

What's your take on this?