×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Reduced Bandwidth on Cisco 3550

Reduced Bandwidth on Cisco 3550

Reduced Bandwidth on Cisco 3550

(OP)
I upgraded my cable connection to 200mbps. I have an ASA5506x with a 3550 switch. When I connect a PC or laptop direct to an ASA port I get full 200mbps. But when I connect to one of the ports on the 3550 may speed gets reduced to only 100mbps. I tried changing the speed/duplex with no luck. Has anyone aver come across this?
Thx

RE: Reduced Bandwidth on Cisco 3550

what is the exact model of your 3550? From the sound of this you may have a 10/100 switch.

RE: Reduced Bandwidth on Cisco 3550

(OP)
I'd have to check but I know for a fact that all but the last 2 ports are 10/100. Last 2 are for gbic that can support 10/100/1000.

RE: Reduced Bandwidth on Cisco 3550

So you probably have a 10/100 switch.

RE: Reduced Bandwidth on Cisco 3550

(OP)
Yep. I assumed the issue was because it was only 10/100 and not gigabit but wasn't sure. I did however configure LAG ports thinking bundling 2 ports on both the ASA and switch would give me 200mbps but I still only got 100mbps throughput.
I'll have to test with a gig switch.

RE: Reduced Bandwidth on Cisco 3550

bonding will not give 200m from a single session as the bandwidth of of a single flow over a LAG is limited to that of the physical link.

RE: Reduced Bandwidth on Cisco 3550

There were seven varients of the Catalyst 3550 switch:

· Catalyst 3550-24 Switch—24 10/100 ports and two Gigabit Interface Converter (GBIC)-based Gigabit Ethernet ports; 1 rack unit (RU)
· Catalyst 3550-24 PWR Switch—24 10/100 ports with integrated inline power and two GBIC-based Gigabit Ethernet ports; 1 RU
· Catalyst 3550-24-DC Switch—24 10/100 ports and two GBIC-based Gigabit Ethernet ports; 1 RU; DC-powered
· Catalyst 3550-24-FX Switch—24 100FX ports and two GBIC-based Gigabit Ethernet ports; 1 RU
· Catalyst 3550-48 Switch—48 10/100 ports and two GBIC-based Gigabit Ethernet ports; 1 RU
· Catalyst 3550-12G Switch—10 GBIC-based Gigabit Ethernet ports and two 10/100/1000BASE-T ports; 1.5 RU
· Catalyst 3550-12T Switch—10 10/100/1000BASE-T ports and two GBIC-based Gigabit Ethernet ports; 1.5 RU

All featured two modular GBIC-based Gigabit Ethernet uplinks except the 3550-12G which has 10 GBIC ports and two 10/100/1000BaseT Ethernet ports. Unless you have the 3550-12T or are connecting both the ASA5506-X and the PC to the Gigabit Ethernet ports then you won't get any more than 100Mbps as the physical interface you are connecting the PC to only runs at 100Mbps.
If you really need a Cisco Catalyst switch with 1Gbps copper ports then you will need to upgrade to a 3560G/3750G (EoL as well) or a 2960S/X or even 3650/3850. It depends on your requirements..

Andy

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close