Skip to main content
Start a Conversation

Unsolved

This post is more than 5 years old

romchr

5 Posts

11066

November 2nd, 2005 14:00

Poor speed performance on two 5324s

This was previously posted under another topic but with a bad description..Sorry for the goof up.
 
 
 
Any help would be appreciated
 
I have two 5324 switches, Switch1 and Switch2.
 
Switch1 has 3 connections which go to terminal servers which are load balanced using Microsoft's NLB. The NLB cluster is configured now in Multicast mode with IGMP support enabled.
 
Switch1/g24 is connected to Switch2/g21.
 
On Switch2 I have the rest of our servers, a couple uplinks to two cisco switches, port g20, going to a watchguard firewall, and port g19 going to a WAN router..
 
What I am noticing though is, speeds aren't as nice as I would expect and mainly the performance or lack there of is noticed on Switch2. I have VPN users trying to access services on servers that are attached to this switch and the response is really slow...I'm including my config files for both switches. I'm 99.9% positive that I have misconfigurations in them....please take a look when you can...Thanks!
 
Chris
 
Switch1
nlbtssrvrs# sh run
interface ethernet g13
port storm-control broadcast enable
exit
interface ethernet g14
port storm-control broadcast enable
exit
interface ethernet g15
port storm-control broadcast enable
exit
interface ethernet g24
port storm-control broadcast enable
exit
spanning-tree mode rstp
interface ethernet g13
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g14
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g15
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g16
spanning-tree cost 100
exit
interface ethernet g24
spanning-tree portfast
spanning-tree cost 4
exit
port storm-control include-multicast
interface ethernet g13
description ts_server_1
speed 1000
duplex full
no mdix
exit
interface ethernet g14
description ts_server_2
speed 1000
duplex full
no mdix
exit
interface ethernet g15
description ts_server_3
speed 1000
duplex full
no mdix
exit
interface ethernet g16
speed 1000
duplex full
exit
interface ethernet g21
shutdown
exit
interface ethernet g22
shutdown
exit
interface ethernet g23
shutdown
exit
interface ethernet g24
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
bridge multicast filtering
ip igmp snooping
interface vlan 1
ip igmp snooping
exit
interface vlan 1
ip address 192.168.1.250 255.255.255.0
exit
no qos
hostname nlbtssrvrs
username admin password c1738ba0f3e9718691f4a0c43149efab level 15 encrypted
username chrisR password 368dc60082c8b47e697826b282b94e3d  encrypted
snmp-server community private rw
snmp-server set rlDnsClEnable  rlDnsClEnable disable
====================================================================
SWITCH 2
 
console# sh run
interface ethernet g1
port storm-control broadcast enable
exit
interface ethernet g2
port storm-control broadcast enable
exit
interface ethernet g3
port storm-control broadcast enable
exit
interface ethernet g4
port storm-control broadcast enable
exit
interface ethernet g5
port storm-control broadcast enable
exit
interface ethernet g6
port storm-control broadcast enable
exit
interface ethernet g7
port storm-control broadcast enable
exit
interface ethernet g8
port storm-control broadcast enable
exit
interface ethernet g9
port storm-control broadcast enable
exit
interface ethernet g10
port storm-control broadcast enable
exit
interface ethernet g11
port storm-control broadcast enable
exit
interface ethernet g12
port storm-control broadcast enable
exit
interface ethernet g13
port storm-control broadcast enable
exit
interface ethernet g14
port storm-control broadcast enable
exit
interface ethernet g15
port storm-control broadcast enable
exit
interface ethernet g16
port storm-control broadcast enable
exit
interface ethernet g17
port storm-control broadcast enable
exit
interface ethernet g18
port storm-control broadcast enable
exit
interface ethernet g19
port storm-control broadcast enable
exit
interface ethernet g20
port storm-control broadcast enable
exit
interface ethernet g21
port storm-control broadcast enable
exit
interface ethernet g22
port storm-control broadcast enable
exit
interface ethernet g23
port storm-control broadcast enable
exit
interface ethernet g24
port storm-control broadcast enable
exit
interface ethernet g1
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g2
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g3
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g4
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g5
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g6
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g7
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g8
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g9
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g10
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g11
spanning-tree cost 100
exit
interface ethernet g12
spanning-tree cost 100
exit
interface ethernet g13
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g14
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g15
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g16
spanning-tree cost 100
exit
interface ethernet g17
spanning-tree cost 100
exit
interface ethernet g18
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g19
spanning-tree portfast
spanning-tree cost 100
exit
interface ethernet g20
spanning-tree portfast
spanning-tree cost 19
exit
interface ethernet g21
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g22
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g23
spanning-tree portfast
spanning-tree cost 4
exit
interface ethernet g24
spanning-tree portfast
spanning-tree cost 4
exit
port storm-control include-multicast
interface ethernet g1
description rs6000
speed 100
duplex full
flowcontrol auto
exit
interface ethernet g2
description MARS
speed 100
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g3
description neptune
speed 100
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g4
speed 100
flowcontrol auto
no negotiation
exit
interface ethernet g5
speed 100
flowcontrol auto
no negotiation
exit
interface ethernet g6
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g7
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g8
description SERVERNT
speed 100
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g9
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g10
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g13
no mdix
exit
interface ethernet g14
no mdix
exit
interface ethernet g18
speed 100
flowcontrol auto
no negotiation
exit
interface ethernet g19
speed 10
flowcontrol auto
no negotiation
exit
interface ethernet g20
description WATCHGUARD
speed 100
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g21
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g22
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g23
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g24
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
bridge multicast filtering
ip igmp snooping
interface vlan 1
ip address 192.168.1.251 255.255.255.0
exit
==============================================================

DELL-Cuong N.

1K Posts

November 8th, 2005 18:00

After quickly scanning through this config I have few observations:

  • You are configuring some of the Gigabit switch to be fixed configuration instead of auto-negotiation.  When doing that you should make sure the other side of this connection is configured the same way.  Alternatively, you could configure auto-negotiation on both end.  Incorrect negotiation may cause your connection to be slow or stop working altogether.
  • Similarly on your 10/100 ports you have some port manually configured.  Whenever you do this you need to verify that both ends are configured similarly and you should check the link status to see what they are actually running as.  You may not be getting the speed you think you are getting in some cases.
  • You also setup alot of spanning tree configuration.  I'm not sure what is intended but spanning tree may also affect your speed when then port first initally comes up.

Cuong.

romchr

5 Posts

November 18th, 2005 20:00

I verified that all the port speeds and duplex match up correctly. I also cleaned up the switches a bit to remove the spanning tree entries..those were by error I'm sure. Here's what I have now on the two switches:

SWITCH 1

spanning-tree mode rstp
port storm-control include-multicast
interface ethernet g13
description JUPITER2
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g14
description JUPITER1
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g15
description JUPITER3
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g24
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
port jumbo-frame
bridge multicast filtering
ip igmp snooping
interface vlan 1
ip igmp snooping
exit
interface vlan 1
ip address 192.168.1.250 255.255.255.0
exit
no qos
hostname nlbtssrvrs
username admin password c1738ba0f3e9718691f4a0c43149efab level 15 encrypted
username chrisR password 368dc60082c8b47e697826b282b94e3d  encrypted
snmp-server community net_anlz su
snmp-server community private rw
snmp-server set rlDnsClEnable  rlDnsClEnable disable

===========================================

SWITCH2

spanning-tree mode rstp
port storm-control include-multicast
interface ethernet g1
description rs6000
speed 100
duplex full
flowcontrol auto
exit
interface ethernet g2
description MARS
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g3
description neptune
speed 100
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g4
description SATURN
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g5
description MERCURY
speed 100
flowcontrol auto
no negotiation
exit
interface ethernet g6
description VENUS
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g7
description URANIS
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g8
description NTSAGITTA
speed 100
duplex full
flowcontrol auto
exit
interface ethernet g9
description TITAN
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g10
description EUROPA
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g13
description JUPITER1-LAN
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g14
description JUPITER2-LAN
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g15
description JUPITER3-LAN
speed 1000
duplex full
flowcontrol auto
exit
interface ethernet g18
description SABRE
speed 100
duplex full
flowcontrol auto
exit
interface ethernet g19
description CISCO
speed 10
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g20
description WATCHGUARD
speed 100
duplex full
flowcontrol auto
exit
interface ethernet g21
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g22
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g23
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
interface ethernet g24
speed 1000
duplex full
flowcontrol auto
no negotiation
exit
port jumbo-frame
bridge multicast filtering
ip igmp snooping
interface vlan 1
ip address 192.168.1.251 255.255.255.0
exit
ip default-gateway 192.168.1.41
interface ethernet g2
exit
interface ethernet g19
exit

=====================================================

The network appears to be working a bit more efficient, but I'm still noticing what I beleive to be flooding on the switches..all links on all switches blink together and at the same intervals.. Is there anything else that may jump out at you that may be an issue...Thanks for your time!

 

Chris

DELL-Cuong N.

1K Posts

November 29th, 2005 18:00

Your configuration is pretty simple now and I don't see anything else at this time.  You are not configuring any VLANs so I am assuming that all end stations are connected to a pretty flat network.  This would mean that all broadcast or multicast packets sent on your network are flooded to all ports.  You maybe able to manage your network better by isolating group of systems into their own virtual LANs and limiting the broadcast/multicast packets to the VLANs.  To do this though you may need to re-evaluate how you setup your network.  You can read about VLAN and checkout some network engineering books for ideas (try google on VLAN).

Also here are some articles written by Dell engineering on these topics that might help you:

http://www1.us.dell.com/content/topics/global.aspx/solutions/en/pwcnt_papers?c=us&cs=555&l=en&s=biz

Cuong.

Was this post helpful?

View All

0 events found

No Events found!

Top