PDA

View Full Version : Cisco Question?


interactive
02-22-03, 08:24 AM
Hello,
Was looking around at switches for my rack. The cisco1924 (catalyst enterprise) looked good, but noticed t hat it only has 10mb based ports? Which model has the 100mb based ports? Thanks

allan
02-27-03, 11:27 PM
Originally posted by interactive
Hello,
Was looking around at switches for my rack. The cisco1924 (catalyst enterprise) looked good, but noticed t hat it only has 10mb based ports? Which model has the 100mb based ports? Thanks

Most 2924 have reach EOL, take a look at the replacement 2950:

http://www.cisco.com/en/US/products/hw/switches/ps4916/index.html

This gives you the option of 10/100/1000 ports.

Unless you are looking at used equipment?

interactive
02-28-03, 03:39 AM
Originally posted by allan
Most 2924 have reach EOL, take a look at the replacement 2950:

http://www.cisco.com/en/US/products/hw/switches/ps4916/index.html

This gives you the option of 10/100/1000 ports.

Unless you are looking at used equipment?
Hello,
I'm looking for used just cause I don't want to pay "new prices". I'm looking into the HP procurve line right now though.

interactive
02-28-03, 07:28 PM
Hey chicken sorry for posting this in the wrong forum, never thought to put it in here...

allan
02-28-03, 07:43 PM
Originally posted by interactive
Hey chicken sorry for posting this in the wrong forum, never thought to put it in here...

I didn't even catch that when I replied :).

Chicken
02-28-03, 11:17 PM
No problem, though Allan will get his future (2 years from now) paycheck docked by $1 as punishment ;) :D

allan
02-28-03, 11:23 PM
Originally posted by interactive
Hello,
I'm looking for used just cause I don't want to pay "new prices". I'm looking into the HP procurve line right now though.

If you change your mind, look for the Cisco 2924 100BaseFX

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3402701556&category=28040

Or the XL:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3402924360&category=28040

allan
02-28-03, 11:23 PM
Originally posted by Chicken
No problem, though Allan will get his future (2 eyars from now) paycheck docked by $1 as punishment ;) :D

Dangit!! I just started and I am already getting docked pay :).

interactive
03-01-03, 04:28 AM
The 2924 looks real nice. Would you recommend this for a "colo rack"?

allan
03-01-03, 04:34 AM
Originally posted by interactive
The 2924 looks real nice. Would you recommend this for a "colo rack"?

Yes, but keep in mind that I am a Cisco bigot. I have only ever worked in environments that were primarily Cisco -- so that is where my experience lies.

A lot of companies use the HP switches (RackMy, Fluid Hosting) and really like them.

interactive
03-01-03, 05:30 AM
Originally posted by allan
Yes, but keep in mind that I am a Cisco bigot. I have only ever worked in environments that were primarily Cisco -- so that is where my experience lies.

A lot of companies use the HP switches (RackMy, Fluid Hosting) and really like them.

How hard would it be to limit a port? For example I'm going to run game servers and a few dedicateds. I want to sset the game servers on a 100 port and the dedicateds on a 10 port.

allan
03-01-03, 09:40 AM
Originally posted by interactive
How hard would it be to limit a port? For example I'm going to run game servers and a few dedicateds. I want to sset the game servers on a 100 port and the dedicateds on a 10 port.


That's relatively easy, it is just a flip of the (command line) switch. Speeds other than 10/100 are more difficult, and don't always work right on the 2924. If you need non-standard port speeds, I would recommend the Extreme Summit over the Cisco.

drhonk
04-28-03, 01:51 PM
Allan,

Is it possible to control what IP going to what port with 2924 .. preventing it from being stolen by some other server. I know this is where Layer 3 come into play, but I need to know whether its possible with 2924 or not.

a URL with documentation would really help .. :)


Cheers,

allan
04-28-03, 02:03 PM
No, you can filter by MAC address, but not by IP Address, on a 2924. The way to do what you want would require a layer 3 switch, or you would have to subnet your IP Addresses when you give them out...which creates a lot of wasted space, but prevents the problem you are describing.

drhonk
04-28-03, 02:11 PM
Would creating arp staticly help ?

allan
04-28-03, 02:51 PM
Originally posted by drhonk:

Would creating arp staticly help ?

Creating a static ARP table will certainly help, but keep in mind that static ARP tables don't scale very well, and they are a real pain to maintain. When you have 10,000 servers in your data center, a static ARP table will be non-functional :D.

drhonk
04-28-03, 02:56 PM
Nahh.. this is just a temporary thing until we get layer 3 switch in place and only for about 15 servers max.

allan
04-28-03, 03:07 PM
Then yes, a static ARP -- which by the way is talked about extensively in my book (ha ha, I'm a moderator I can get away with it doo dah :D) -- will absolutely do the trick.

This pages gives a good overview of using static addresses on the switch:

Combine:

http://www.cisco.com/en/US/products/hw/switches/ps607/

with:

products_command_reference_chapter09186a008007eb87 .html

And search for: "Managing the Switch Address Table"

drhonk
04-29-03, 10:15 AM
BTW .. that link gave me an error ..

:)

allan
04-29-03, 10:29 AM
Originally posted by drhonk:

BTW .. that link gave me an error ..

:)

Damned...VB wouldn't take the link. I posted the two halves above :).

Adam
07-09-03, 12:08 PM
Cisco 2924-XL-EN is a good start although i think these are now obsolete and repalced with a 3xxx switch.

Adam
07-19-03, 04:31 AM
I use Cisco equipment for the ruoting of the network but switching i primarily use Extreme Summit 48's. Although when we have client entities, we setup an auxiliary switch using HP or 3Com switches, but thats only because its reduced loads within the auxiliary read area.

Adam
07-19-03, 04:31 AM
Yeah the 2924-XL-EN has now reached end of life. 3XXX series have taken over this switch.