Cisco WS-C3550-48 GBIC ports!!!

Unanswered Question
Jan 9th, 2008

Hi can you please help me.

Im planning to connect 2 servers with 1 gig nic on 3550 switch fiber module.

Is there any probelm?

what do i need to check to make sure that i will not encounter any problem?

r all gbics ports hav the same capabilities?

please see below my router show version

Cisco WS-C3550-48 (PowerPC) processor (revision S0) with 65526K/8192K bytes of memory.

Processor board ID CAT0942N5LT

Last reset from warm-reset

Running Layer2/3 Switching Image

Thanks for the help.

I have this problem too.
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Edison Ortiz Wed, 01/09/2008 - 19:42

All Gigabit switchports have the same capability. Can you post the entire show version ?

___

Edison.

iceman0813 Wed, 01/09/2008 - 20:21

Hi ediortiz,

thanks for your reply, plese find below my full show version from 3550 switch.

Cisco IOS Software, C3550 Software (C3550-IPBASE-M), Version 12.2(25)SEB4, RELEASE SOFTWARE (fc1)

Copyright (c) 1986-2005 by Cisco Systems, Inc.

ROM: Bootstrap program is C3550 boot loader

ComputerRoom3550 uptime is 14 weeks, 6 days, 1 minute

System returned to ROM by power-on

System image file is "flash:c3550-ipbase-mz.122-25.SEB4/c3550-ipbase-mz.122-25.SEB4.bin"

Cisco WS-C3550-48 (PowerPC) processor (revision S0) with 65526K/8192K bytes of memory.

Processor board ID CAT0942N5LT

Last reset from warm-reset

Running Layer2/3 Switching Image

Ethernet-controller 1 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 2 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 3 has 12 Fast Ethernet/IEEE 802.3 interfaces

--More--

Ethernet-controller 4 has 12 Fast Ethernet/IEEE 802.3 interfaces

Ethernet-controller 5 has 1 Gigabit Ethernet/IEEE 802.3 interface

Ethernet-controller 6 has 1 Gigabit Ethernet/IEEE 802.3 interface

48 FastEthernet interfaces

2 Gigabit Ethernet interfaces

The password-recovery mechanism is enabled.

384K bytes of flash-simulated NVRAM.

Motherboard assembly number: 73-5701-10

Power supply part number: 34-0967-03

Motherboard serial number: CAT09430PAN

Power supply serial number: DTH09357W30

Model revision number: S0

Motherboard revision number: A0

Model number: WS-C3550-48-SMI

System serial number: CAT0942N5LT

Configuration register is 0x10F

Thanks.

iceman0813 Wed, 01/09/2008 - 20:25

hi edison,

what can you say about 2 server's connecting on gigabit switch ports?

Is that a bad or good setup? im worried about the problems that I will be encounter in the future.

Thanks.

Edison Ortiz Wed, 01/09/2008 - 21:34

If you aren't planning on connecting other switches (expanding your port count), then using the Gigabit ports should be fine.

Often, those ports are left for inter-switch link because that's where the bandwidth aggregation usually occurs.

HTH,

___

Edison.

iceman0813 Wed, 01/09/2008 - 21:53

Hi edison,

Again thanks for your help and i'm very appreaciated.

I have also plan to connect 3 switches on 3550 via ethernet ports. 2 2950 switches and 1 2960.And will also use VTP and VLAN for 2960 for 10 pc's connected.( my boss wanted me to separate the traffic from 10 pc's connected on 2960)

Is that OK?

BTW the 2 serves that will connect on 3550 has 1 gig NIC.

Thanks and God bless

Edison Ortiz Thu, 01/10/2008 - 05:50

1) You mentioned the 3550 has fiber Gigabit ports. Are you planning to swap those fiber GBICs for copper GBICs for the server connection? You need the module(s) 1000BASE-T GBIC

2) Creating multiple Vlans on these switches and managing these Vlans via VTP is perfectly Ok. You will need to route between these Vlans using the 3550. Make sure you have the EMI image for routing support and enable ip routing on the switch.

Make sure you read these documents:

Configuring Vlans:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/swvlan.html

Configuring VTP:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/swvtp.html

Configuring Routing:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/swiprout.html

You don't need a dynamic routing protocol on the 3550 to route between Vlans. Default ip routing will take care of routing between its connected Vlans.

HTH,

__

Edison.

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