Cisco Switching/Routing :: 3550 Upgrade To Gigabit Switch

Jun 4, 2013

I have a 3550 switch right now, and need to upgrade to a gigabit switch, so I'm looking at a 3560G-48.  For some reason I purchased an EMI version of my 3550, but run the ipbase image...what I need to look for - is a 3560G-48-s good for what I need?

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Cisco Switching/Routing :: Catalyst 3550 With WS-G5482 Gigabit Adapter

Oct 25, 2011

I can assign IP addresses to any of the 24 FastEthernet ports (it is a 24 port switch!). However, I have fitted the WS-G5482 Gigabit adaptor to give me Gig ethernet capability. It does not seem to be possible to assign an IP address to the adaptor.I realise that as it is an 'add on module' (well, a plug in module) this is different to the 24 port in the 'body' of the switch. I also have read that these Gig adaptors will only connect to other Gig adaptors (I found that out by trial and error, and then confirmed it by searching here).it's not possible to assign an IP addy to one of the plug in modules; it is not a big deal but I am planning to assign some IP addresses for remote management etc. I was going to use the Gig port for this but it may not be possible.
 
AH PS I am using the switch and connecting to the internet via the Gig adaptor, then out from one of the fastethernet ports to another little switch and then on to a router and out to the internet, so the switch and the plug in module are working fine.

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Cisco Switching/Routing :: 3550 / Layer 3 Switch Not Routing?

Apr 26, 2012

I have a 3550 l3 switch configured as follows:

vlan 10 ports 1-10
vlan 21 ports 11-20
vlan 30 port 21-30
vlan 40 ports 31-40
default vlan should be vlan 21

I have the servers, switch and router connected to vlan 21.  Vlan 21 works great I can browse the internet, but I cannot ping any other vlans. router is connected to fa0/19
 
[code]
Building configuration... 
Current configuration : 4833 bytes
 !
 version 12.2
 no service pad

[code]....

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Cisco Switching/Routing :: VLan Routing Same Switch 3550-12T?

Mar 10, 2013

I'm having some problems setting up vlans to talk to each other on a 3550-12T switch. Its quite a simple setup I have, but I need to split my network up.
 
Currently I have a network of 192.168.25.0 255.255.255.0 I want to create a new vlan network of 192.168.30.0 255.255.255.0 So I have configured my vlan1 (default vlan) to have an ip of 192.168.25.250 for getting to the management page
 
I have created a vlan2 of 192.168.30.1 255.255.255.0 ?I have a port 10 linked to one of my 3560G's?In port 9 which is on vlan2 I have my pc plugged in with a static ip of 192.168.30.50 from the router I can ping any device on 192.168.25.x.
 
I can not ping 192.168.30.1 (which is my vlan2) nor can i ping the PC.
 
I have enabled ip routing  But I dont have a default route, this is becase we don't have a router on the network.

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Cisco Switching/Routing :: GLC-GE-100FX - Connection To 3550 Switch Over MMF

May 21, 2012

i have an OM1 MMF fiber run between two switches, the first being a 3750 and the second being a 3550.
 
The link currently exceeds the maximum distance for OM1 @ 1000Mb/s (220m) so i would like to downgrade the link to 100FX using the necessary SFP's/GBIC's to extend the maximum distance to 550m and run the link @ 100Mb/s.
 
I have the part code for the 100FX SFP to install in the 3750 (GLC-GE-100FX) but cant find a 100FX GBIC for the 3550, can I use a 1000SX GBIC (WS-G5484) for the 3550 at one end and the 100FX SFP at the other? Any success with this configuration over MMF?

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Cisco Switching/Routing :: Port Unreachable Messages On 3550 Switch?

Jan 24, 2012

While working at a client site today, I was troubleshooting some ICMP connectivity for a network we have created.I turned on 'debug ip icmp" on the 3550 switch int he middle, and was inundated with the following debug output:
 
Jan 25 11:01:14.641: ICMP: dst (172.16.1.7) port unreachable rcv from 172.16.1.5
Jan 25 11:01:14.641: ICMP: dst (172.16.1.7) port unreachable rcv from 172.16.1.5
Jan 25 11:01:14.641: ICMP: dst (172.16.1.7) port unreachable rcv from 172.16.1.5
Jan 25 11:01:14.641: ICMP: dst (172.16.1.7) port unreachable rcv from 172.16.1.5

[code]....
 
This output fires several times a second, and based on how often it is firing, I am curious if it may be a culprit with respect to the fact that the client has indicated that they have some slow internet.Should the next step be to look at the workstation at 172.16.1.5? 

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Cisco Switching/Routing :: Route-map Command Support On Switch 3550?

Sep 30, 2012

I have cisco switch 3550 IOS Version 12.1(19)EA1c.   
 
I can configure route-map commands on that.  but i can not apply that into any vlan interface.   while i try to apply the following command ( ip policy route-map PBR) on VLAN int i get an error msg saying that the command is not recognized.

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Cisco Switching/Routing :: Have HSRP Or GLBP Between Two Different Switch Like 3550 And 3560?

Dec 9, 2012

Can i have HSRP or GLBP between two different switch like 3550 and 3560?

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Cisco Switching/Routing :: How To Block Single Mac Address In 3550 Switch

Nov 16, 2011

I need to block this mac address in  my 3550 switch.i enable port security but this mac address comes and do the violation and port is shut down.

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Cisco Switching/Routing :: Catalyst 3550 Switch - Dynamic QoS Setup

Mar 28, 2012

I live in a condo building that uses 3 Cisco Catalyst 3550 switches connected to a Comcast router with 100 Mbps download. Currently we regulate bandwidth by providing each user with 3 Mbps download. Even if only two people are active they still only get 3 Mbps download. I would like to set it up so if two people are using they each get 50 Mbps; a sort of 'dynamic qos. Is this possible with these switches? Would we have to purchase a Cisco router in order to provide this feature?

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Cisco Switching/Routing :: Changing Native Vlan On 3550 Switch

Dec 22, 2012

I am having trouble after creating a management vlan (99) on a 3550 switch.I have configured the vlan (99) and given it an IP (192.168.1.100) and a default gateway (my router address - 192.168.1.99).I can ping to the switch from a PC and vice versa. The management VLAN IP is fine but now I cannot ping to the router from either the PC or the switch.It seems that just by adding VLAN 99 with it's own IP address has now prevented pings from the switch/ PC to the router ?Due to the fact that I have created a new switch management VLAN with an IP, does this mean I have set up the router as a 'router on a stick' scenario ? [code]

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Cisco Switching/Routing :: Enable / Disable Interfaces On 3550 Switch

Jul 14, 2012

I`m looking to automate some functions in a web application.Functions like enable/disable interfaces on a Cisco 3550 switch.

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Cisco Switching/Routing :: 3550 EMI Switch Is Not Responding To Power Connection

May 10, 2012

My cisco 3550 EMI switch is not responding to power connection. I have checked and changed power cable. its still not working.fan is not running and no lights on front panel

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Cisco Switching/Routing :: Internet Access For 3550 Switch VLANs?

Feb 22, 2012

I have a small cisco switch cluster (seven different 2924, 3524cisco switches) with 3550 as a cluster control which does all the inter vlan routing that works fine.
 
This cluster is in semi production PBX interop testing lab. This is a closed network without internet access and not connected to our corporate network.However now I have to add this capability so some equipment in the lab can get Microsoft updates over the internet.
 
I've created a port on a 3550 (fa0/19) and connected it to another network that has internet access. It picked an ip address and when I'm logged in to the 3550 I can ping hosts on the outside network. However I can't ping any hosts on that network from any hosts that are connected to my vlans.I've tried a few different things, but still can't make it to work.
 
Here is a short version of my 3550 configuration:

!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log datetime
no service password-encryption

[code]....

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Cisco Switching/Routing :: 3550 - Switch Disconnects Another Voip Phone?

May 14, 2013

im having this strange issue where everytime i plug in a voip phone to my 3550 the switch disconnects another voip phone.then to fix the disconnected phone (7940) i need to power off the phone 5-10 minutes then power it on again.

but the strange thing is, once i have to do that to fix the phone and connect the phone back to the switch, the port link is up, but no macs are seen on that port.

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Cisco Switching/Routing :: Switch 3550 - Command To Display GBIC In It?

Nov 9, 2011

Is there any command to display the GBIC in the switch because I need to replace 3550 but I have no exact part number

the model is WS-C3550-24-SMI
and try
sh inventory
sh hardware
sh diag
sh module

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Cisco Switching/Routing :: 3550 - Copy IOS To Switch In ROMmon Mode?

Jan 24, 2012

I have a 3550 switch that was replaced at a remote site with no IOS. This is a switch not a router so tftpdnld does not work.
 
[Code]...
 
The problem is the switches interface never comes up so try to connect to the tftp server. I read on google it can't be done on a switch to copy from tftp to flash in rommon mode on a switch and to use XMODEM. My problem is I do not have access to it, I ssh into a 3640 which is an access server for all devices and that is how I have console to it, how to use XMODEM over ssh.
 
But I'm fairly certain that there has to be a way to just copy it from tftp? I have a 3550 local and when I put it in rommon mode it stops the port check at port, port 1 goes from green when you plug it in to off then port 2 changes to amber and the rest green. So just by the look of this I would believe tftp would work; you just need to use port 1.

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Cisco Switching/Routing :: 3550 Switch - Software Forced Crash Exception

Feb 7, 2013

Our switch had a little crash-fest this morning at 2:30 AM. I did find a web page about diagnosing Software Forced Crash Exceptions, but it did not look like ours was one of the more easily-identifiable ones.
 
It may be worth noting that we've only used this switch for about a month, everything seemed fine until now. When we got the switch it did not have any GigE modules, and this week we put 2 into it and have been using them for 2 servers.
 
It looks like the switch was crashing repeatedly over a period of 20 minutes, and then it stopped and normalized. In the logs of the router that this switch uplinks into, we could see the ethernet port flapping during the time that the switch wasn't reachable.
 
Here's the Show Stack on the switch:
 
Sfld_3550#    show stackMinimum process stacks:Free/Size   Name4404/6000   vegas_flash init3352/6000   SaveCrashBuffer5716/6000   CDP BLOB8512/9000   IP Background5596/6000   vqpc_shim_create_addr_tbl5584/6000   SPAN Subsystem5552/6000   SASL MAIN4944/6000   vegas IPC process8704/9000   cdp init process5404/6000   RADIUS INITCONFIG4928/6000   Vegas CrashBuffer5664/6000   URPF stats2536/3000   Rom Random Update

[code].....

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Cisco Switching/Routing :: 3550 - Export Mac Address From Switch To Local Machine?

Jan 8, 2013

I am working on Cisco 3550 switch on a certain requirement. I have got an access point connected to the switch and few mobile phones connected to the access point. I get the list of mac addresses connected to the switch ( Both access point's mac address & the clients addresses) by "show mac-address table dynamic" command. However, i am unable/confused to get the output of the following scenarios:
 
1. I would require to export the mac address from the switch to the local machine in any format (May be by using an SNMP tool, if available) so that the same needs to be used in my C# for development.What would be the way for the same ?
 
2. The mac address in the mac address table doesn't get updated dynamically. (Eg Scenario: A wifi client gets connected to an access point which inturn is connected to the switch, the mac address of the client shows up in the switch table. However if the client is disconnected, the client's mac address would still be displayed in the switch table )

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Cisco Switching/Routing :: Reset SRW2008P 8-port Gigabit Switch

Apr 12, 2012

Is it possible to reset this switch oif yo uare unable to get into the console or web interfaces?

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Cisco Switching/Routing :: 4948E - Configure Switch Gigabit Port

Sep 11, 2012

Trying to configure the Cisco 4948e switch gigabit ethernet port with "switch port trunk encapsulation dot1q", but didn't get the option. Please find below the options got after "swith port trunk"............
 
SW(config-if)#switch port trunk ?
  allowed       Set allowed V LAN characteristics when interface is in trunking mode
  native         Set trunking native characteristics when interface is in trunking mode
  pruning       Set pruning V LAN characteristics when interface is in trunking mode
 
SW(config-if)#switch port trunk. Please find below the version of the SW............ 
 
SW#sh ver
Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-LANBASE-M), Versi
on 12.2(54)SG1, RELEASE SOFTWARE (fc1)
Technical Support: {URL} 
ROM: 12.2(44r)SG11
Hobgoblin Revision 21, Fortooine Revision 1.22
[code]...
 
So, whether the command is not supporting on this Cisco switch ? But we have Cisco 4948 Cisco sw where that command is working fine.

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Cisco Switching/Routing :: 3550 - Unable To Ping Internet From HSRP Standby Switch

Nov 16, 2011

I have router connected to 2  3550 switches  directly. 3550A  and B  switches are running HSRP. OSPF is running between Router and 2 switches.
 
From Switch B  i can ping the Router Wan interface but not the internet sites. from Switch A  i can ping any sites?
  
Switch B 
3550SMIB#                          sh ip routeCodes: C - connected, S - static, R - RIP, M - mobile, B - BGP       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area       N1

[Code]......

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Cisco Switching/Routing :: 2960G High Output Drops Only On Gigabit Switch

Feb 11, 2013

I just got a Cisco 2960G 24-port gigabit switch so that our HP servers can have a Gigabit connection to the network. I moved 2 servers to it (HP Proliant DL380's)  but they don't actually seem to be able to achieve even close to 1000Gbps. I ran same some LAN bandwidth tests and it was showing only around 200-300 Mbps between all of them. I also ran a network stress test utility, LAN Tornado, and it was showing packet loss as high as 60% when on gigabit, and only .07% when on 100Mbps.
 
-Both the NIC's and the switch ports are set to 1000/Full

-Currently using Cat5e cabling no more than 25Ft in length (I know Cat6 would be better but Cat5e is supposed to support Gigabit)

-All servers are on the same VLAN
 
Here are the port statistics when running just a stress test @ 10Mbps that had a 45% packet loss. What's odd though is when I set the servers and switches to 100Mbps, I get less than 1% packet loss.
 
GigabitEthernet1/0/16 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 203a.07ff.7e90 (bia 203a.07ff.7e90)
MTU 9000 bytes, BW 1000000 Kbit/sec, DLY 10 usec,

[Code].....

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Cisco Switching/Routing :: Cannot Upgrade 2960G Switch

Jun 26, 2012

I have a few 24-port Cisco 2960G Switches (model WS-C2960G-24TC-L) that I upgraded to IOS Release 15.0(1)SE2 using the web interface. I am now trying to upgrade those switches with the new release, 15.0(1)SE3, however I seem unable to do it, I have tried this on two switches so far, both have been upgraded to SE2 just a couple months ago or so, and both of them will not accept the SE3 upgrade, basically, I can select the tar file in the web browser and click "Upgrade"  but when I do the status never changes from "Loading the tar file to the switch". I have tried multiple times from multiple computers using many different web browsers, including IE6 which is listed as supported. I have let it go for as long as 1.5 hours but to no avail.I also had a few idential switches here that had never been upgarded to SE2, I have had no problems loading SE3 onto them using the same method so it would seem that the tar file I have downloaded is valid.

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Cisco Switching/Routing :: IOS Upgrade Option In 2960S Switch

Dec 11, 2012

We  have a Cat2960-S Series PoE+ currently running 12.2(55) SE5 ios with SW image C2960S-UNIVERSALK9-M.We want to upgrade the ios to the lastest version but found there are 2 version: 12.2(53) SE2 and 15.0(1) SE.Which is the best & suitable for upgrade?

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Cisco Switching/Routing :: Upgrade TAR IOS Image In 3560 Switch?

Oct 31, 2012

I wanted to upload image having .tar extension in Cisco 3560 switch. What are the steps to upload.

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Cisco Switching/Routing :: 2960s Switch Stack IOS Upgrade?

Apr 18, 2012

I was just curious about something with upgrading a 2960s stack.
 
To copy the image to the switches in the stack I use: Switch# archive download-sw tftp://x.x.x.x/filename
 
Does this also set the image as the boot image or do I still need to issue the boot system flash command?
 
can I just issue this command on the master switch and reload and the new config will be pushed to the rest of the switches?

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Cisco Switching/Routing :: Upgrade The Firmware In C2960 Switch To 15(1) SE2?

Feb 14, 2012

i am trying to upgrade the firmware in my C2960 switch to 15(1) SE2, and i get the error:Failed to execute the command archive download -sw /overwrite /http iosFile

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Cisco Switching/Routing :: 3560G Switch NTP Not Sync After IOS Upgrade?

Feb 21, 2012

We have two 3560G-TS-E running 12.2(35)se2, configured as HSRP. Both are running ntp config "ntp peer 210.72.145.44" and it's pretty well that they get the correct time. Yesterday I upgraded the second device to IOS 12.2(58)se2 and ntp doesn't work now. I checked doc that 12.2(58)se2 runs ntp default version 4 so I change to "ntp peer 210.72.145.44 version 3" but still not work. I put here "show ntp" result for different IOS.
 
IOS 12.2(35)
SW01>show ntp status
Clock is synchronized, stratum 2, reference is 210.72.145.44
nominal freq is 119.2092 Hz, actual freq is 119.2022 Hz, precision is 2**18
reference time is D2EF12A5.2EB2DCB2 (15:07:17.182 GMT Wed Feb 22 2012)
clock offset is -4.6616 msec, root delay is 57.50 msec

[code]...

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Cisco Switching/Routing :: IOS Upgrade Procedure Switch 3750g?

Apr 23, 2013

I am looking few information on IOS up-gradation for the switch   WS-C3750G-48TS-S . I loaded new Image on the flash and current flash and sh boot as below
 
 Switch#sh flash 
Directory of flash:/
     2  -rwx     8859636   Mar 1 1993 00:08:14 +00:00  c3750-ipservicesk9-mz.122-37.SE.bin
    3  -rwx         556   Mar 1 1993 00:02:38 +00:00  vlan.dat
    4  drwx          64   Jan 9 2012 03:17:56 +00:00  crashinfo_ext
    5  -rwx        5768  Apr 24 2013 04:25:28 +00:00  private-config.text

[code]...
 
1) I would like to set  boot sytem parameter for the new IOS and secondary old IOS as well  is below command works??? if IOS not coming up with new one 12.2.58   is it boots with old  12.2-35 ?
 
   boot system flash:c3750-ipservicesk9-mz.122-58.SE2.bin;flash:c3750-ipbase-mz.122-35.SE5
 
2) If I set only  boot system flash:c3750-ipservicesk9-mz.122-58  ,  if new image corrput swicth will check valid image and boot up with old image ?
 
3) If switch went to room1 switch mode  and still I have valild running IOS c3750-ipservicesk9-mz.122-37.SE.bin  at flash memory, how to restore with old image

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Cisco Switching/Routing :: Upgrade WS 2960 24 TC-L Switch With IOS Image

Jan 8, 2013

I am trying to upgrade my cisco WS 2960 24 TC-L switch with the IOS image c2960-lanbasek9-mz.122-55.SE6.bin and my existing IOS image is c2960-lanbasek9-mz.122-50.SE5.bin. when i  am copying it to flash, it is getting copied but when i tried to boot it after entering command boot system c2960-lanbasek9-mz.122-55.SE6.bin , it gave me an error.
 
both flash dir and error are attahced herewith.

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Cisco Switching/Routing :: 3750 Switch IOS Upgrade Failed

Oct 4, 2012

I have upgraded my 3750X switch from

c3750e-universalk9-mz.122-53.SE3
c3750e-universalk9-mz.122-55.SE5.bin
 
later that by mistake i typed delete /force /recursive flash:now, I am unable to load new IOS error loading "flash:c3750e-universalk9-mz.122-55.SE5.bin" Interrupt within 5 seconds to abort boot process.Boot process failed...

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Cisco Switching/Routing :: 2955 Switch Not Starting After IOS Upgrade?

Jan 21, 2013

I have installed Cisco 2955 Switch which already have x.x.x.x EA12 IOS and I copied x.x.x.x.EA13 into the flash: with intention to have EA13 enabled for IOS. I set the Global config for boot system by 'boot system (no falsh)x.x.EA13;x.x.EA12' but then also no luck and was showing EA12 in 'sh ver'. I then deleted the EA12 IOS and set the 'boot system flash:x.x.EA13'. I also had varified IOS EA13 by 'verify flash:IOS Filename', it verified the IOS.
 
But when I reloaded my switch, I'm unable to login and its in 'switch:' prompt (ROMmon mode - I believe). I then tried for flash_init, load_helper, dir flash: (showing me EA13 there) and finally boot flash:IOS Image file but no good news here... Output like this
 
Error loading "flash:IOS Image File EA13" Interrupt within 5 seconds to abort boot process. Error loading "flash:c2950-i6q4l2-mz.121-12c.EA1.bin"Interrupt within 5 seconds to abort boot process.

My guessing is that the IOS is corrupted (but its not showing me Error loading Image blabla...) I'm trying with EA14 of 4MB and I have 3 MB free spare and decided to remove EA13 first then through XModem try to upload EA14.
 
Any useful way and recommend me deleting EA13 and upgrading EA14... Also option to set boot image with having two IOS at the same time for permanent use.

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