RE: Dell power connect switches.

2004-05-21 Thread Joel Perez

Wow, 

I got more responses than I thought.
I tend to agree with the majority of the opinions. I tested a 3048,3348
and 6024 in our lab. We will be creating about 12 VLANS total.
While that isn't a lot per say, the 3048 couldn't handle more than one
VLAN on it. The 3348 let us add several vlan's but then I couldn't trunk
them together.. The 6024 we really didn't experience any problems with
so far.

But, I don't want some of the switches to work correctly some of the
time.


I am going to make my stand against buying these for our network and try
to pitch Cisco for L3 stuff and RiverStone for L2 stuff.
I know some people don't like RiverStone, but I have several years of
experience with them at my previous place of employment. I agree that
for L3 they aren't worth it, but for L2 I never had any issues. Well...
worms love to melt RiverStones, but that is another story.

Another thing that bugs me is that the existing Dell switches have had
ports go bad on them. At least with the RiverStones I can replace the
Ethernet cards. With the Dell's I have to replace the whole switch.

Thanks again to everyone!

-
Joel Perez| Network Engineer
[EMAIL PROTECTED]  | www.USPGI.com
-

 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Joel Perez
Sent: Thursday, May 20, 2004 4:11 PM
To: [EMAIL PROTECTED]
Subject: Dell power connect switches.


Good afternoon,

 
We are planning to deploy several Dell PowerConnect 3324, 3348 and 6024
switches on our network.

We currently have between 200-300 users and servers that these switches
will service. We are also planning to add about 300-400 more users in
the next 2-3 mos. 85% of the users are for our call center where they
all use Terminal clients and connect to W2K TS. The rest is regular
staff and our application servers. 

Can anyone tell me any good/bad points about them?

I originally proposed using RiverStone as L2 switches but price was a
factor in our decision to go with Dell. That is my main concern at this
point. The Dell switches are very cheap compared to other L2 switches
out there. Will this be a case of you get what you pay for or are they
really good performing units?

I really have not been able to find any lists or other sources with
comments on these units. I'd appreciate any info you guys might have.


Regards,


-
Joel Perez| Network Engineer
[EMAIL PROTECTED]  | www.USPGI.com
-

 



Re: Dell power connect switches.

2004-05-21 Thread Iljitsch van Beijnum
On 20-mei-04, at 22:10, Joel Perez wrote:
We are planning to deploy several Dell PowerConnect 3324, 3348 and 6024
switches on our network.
No real complaints. The management is a bit unusual as it's menu-based 
and the telnet session always makes the cursor disappear on my vt100 
windows... Then there is the issue that you have to set the vlan for 
access ports in two places, for no apparent reason. Unless I'm 
mistaken, the IP address for the switch works in all vlans. So I'm 
not sure if this switch is appropriate in very security conscious 
environments, but for simple managed switching it works well enough.



Re: Dell power connect switches.

2004-05-21 Thread Iljitsch van Beijnum
On 20-mei-04, at 22:42, Mikael Abrahamsson wrote:
If you like the management interface of your Dells then they'll most
likely perform what you need in the pure shuffle packets-area as 
long as
you do IPv4 unicast.

If you want to muck around with multicast, several vlans perhaps 
leaking
multicast from one vlan to another, private vlan edge, QoS etc, (mostly
metro ethernet stuff, for delivering triple play services to 
subscribers),
then that's a whole other ballgame.
I've been feeding one of those 7 Mbps worth of multicast traffic on and 
off for the better part of a year without problems. Not sure if it 
snoops, and haven't tried anything else fancy, though.



Dell power connect switches.

2004-05-20 Thread Joel Perez

Good afternoon,

 
We are planning to deploy several Dell PowerConnect 3324, 3348 and 6024
switches on our network.

We currently have between 200-300 users and servers that these switches
will service. We are also planning to add about 300-400 more users in
the next 2-3 mos. 85% of the users are for our call center where they
all use Terminal clients and connect to W2K TS. The rest is regular
staff and our application servers. 

Can anyone tell me any good/bad points about them?

I originally proposed using RiverStone as L2 switches but price was a
factor in our decision to go with Dell. That is my main concern at this
point. The Dell switches are very cheap compared to other L2 switches
out there. Will this be a case of you get what you pay for or are they
really good performing units?

I really have not been able to find any lists or other sources with
comments on these units. I'd appreciate any info you guys might have.


Regards,


-
Joel Perez| Network Engineer
[EMAIL PROTECTED]  | www.USPGI.com
-

 



Re: Dell power connect switches.

2004-05-20 Thread Kevin C Miller

Can anyone tell me any good/bad points about them?
I looked at the 3248 and 5224s about a year ago, and would strongly advise 
against deploying any of the gear in a production environment. They had a 
number of issues with LACP/dot1q. The most severe issue is that the 
management interface would occasionally crash hard -- no control possible, 
even by serial line. It was still passing packets, but had to be reloaded 
to change anything. They were also a number of exploits of the web 
interface (incorrect implementations of access control, improper bounds 
checking, etc.)

You get what you pay for. I believe the switches are OEMed from Accton; 
you'll find other vendors (e.g. SMC) selling the same boxes.

-Kevin
---
Kevin C. Miller [EMAIL PROTECTED]


Re: Dell power connect switches.

2004-05-20 Thread Mikael Abrahamsson

On Thu, 20 May 2004, Joel Perez wrote:

 out there. Will this be a case of you get what you pay for or are they
 really good performing units?
 
 I really have not been able to find any lists or other sources with
 comments on these units. I'd appreciate any info you guys might have.

In the low-end market it's mostly management and other software issues you 
pay for. I have an example of a 24 port 10/100 switch with dual 1000TX 
uplinks for $95 from an Taiwan manufacturer, where you get some kind of 
windows-only special management program (not telnet/snmp able).

It's still very inexpensive and they claim wire-speed and I have no reason 
to doubt it, making a 20gigsbit/s unit is not very hard today.

If you like the management interface of your Dells then they'll most 
likely perform what you need in the pure shuffle packets-area as long as 
you do IPv4 unicast. 

If you want to muck around with multicast, several vlans perhaps leaking
multicast from one vlan to another, private vlan edge, QoS etc, (mostly
metro ethernet stuff, for delivering triple play services to subscribers), 
then that's a whole other ballgame.

-- 
Mikael Abrahamssonemail: [EMAIL PROTECTED]




Re: Dell power connect switches.

2004-05-20 Thread Joel Jaeggli

dell managed switches = accton and smc managed switches

the cli is cisco style. early revs of their firmware had frequent 
managemnt interface crashes, that appears to be mostly fixed in more 
recent builds.

joelja

On Thu, 20 May 2004, Joel Perez wrote:

 
 Good afternoon,
 
  
 We are planning to deploy several Dell PowerConnect 3324, 3348 and 6024
 switches on our network.
 
 We currently have between 200-300 users and servers that these switches
 will service. We are also planning to add about 300-400 more users in
 the next 2-3 mos. 85% of the users are for our call center where they
 all use Terminal clients and connect to W2K TS. The rest is regular
 staff and our application servers. 
 
 Can anyone tell me any good/bad points about them?
 
 I originally proposed using RiverStone as L2 switches but price was a
 factor in our decision to go with Dell. That is my main concern at this
 point. The Dell switches are very cheap compared to other L2 switches
 out there. Will this be a case of you get what you pay for or are they
 really good performing units?
 
 I really have not been able to find any lists or other sources with
 comments on these units. I'd appreciate any info you guys might have.
 
 
 Regards,
 
 
 -
 Joel Perez| Network Engineer
 [EMAIL PROTECTED]  | www.USPGI.com
 -
 
  
 
 

-- 
-- 
Joel Jaeggli   Unix Consulting [EMAIL PROTECTED]
GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2




Re: Dell power connect switches.

2004-05-20 Thread jlewis

On Thu, 20 May 2004, Joel Perez wrote:

 We are planning to deploy several Dell PowerConnect 3324, 3348 and 6024
 switches on our network.

I don't know how related they are (if at all), but we were suckered into
buying several Dell PowerConnect 3248's some time ago.  We have a serious
issue with them in that the telnet CLI tends to cease properly accepting
connections after a while...making them effectively dumb unmanaged L2
switches.  If anyone's aware of a fix for this (other than serial
consoles), I'd love to hear it.

--
 Jon Lewis [EMAIL PROTECTED]|  I route
 Senior Network Engineer |  therefore you are
 Atlantic Net|
_ http://www.lewis.org/~jlewis/pgp for PGP public key_