Cisco Switching/Routing :: 3524XL Cannot Access Any Traffic From Gigabit Port Over Fiber

Nov 20, 2011

We have Cisco 3524XL switch, Motorola AXS1800 chassis. I am configuring this cisco switch so I can connect AXS1800 traffic thru cisco 3524XL, on switch port gigabit 0/1, I am using cisco Part no. WS-G5486 (1000Base-LX) connector to connect to AXS1800, both port are member of vlan 200 allowed, and configured dhcp-server 192.168.0.1, but still I can't ping any host or host can't get DHCP server.

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Cisco Switching/Routing :: 3524XL Can't Access Any Traffic From Gigabit 0/1 Port Over Fiber

Dec 26, 2011

We have Cisco 3524XL switch, Motorola AXS1800 chassis. I am configuring this Cisco switch so I can connect AXS1800 traffic thru Cisco 3524XL, on switch port gigabit 0/1, I am using Cisco Part no. WS-G5486 (1000Base-LX) connector to connect to AXS1800, both port are member of v lan 200 allowed, and configured  dhcp-server 192.168.0.1, but still I can't ping any host or host can't get DHCP server. I have attached my config file for your review.

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Cisco Switching/Routing :: C3550 - Configure Loop Back Interface On Gigabit Fiber Port

Sep 14, 2012

I am trying to configure a loop back interface like so: [URL], on the following device:

C3550 Software (C3550-IPSERVICESK9-M), Version 12.2(50)SE, RELEASE SOFTWARE (fc1on port gig0/1 which is using a 1000Base-SX adapter. This is for troubleshooting purposes and it does not appear to be a feasible option.  Is there another way to accomplish in the IOS?

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Cisco Switching/Routing :: 3750 - How To Isolate Fiber Port Traffic

Jun 18, 2012

We would like to setup a link to our DR site that is separate from our main network traffic.  This link will be used by an EMC VNX SAN for replication traffic.  The SAN will be plugged into a fiber port on a 3750 switch and going out from the same switch (going in as multimode, going out as single mode) into a patch panel that runs over to the DR site (about a mile away).  At the DR site it will go from the fiber panel into another 3750 switch which ends up going back out of that switch into our DR SAN.
 
I'm wondering what the best way would be to configure the fiber ports to accomplish this.  I'm affraid that the replication traffic will find it's way over through another route and congest our main network unless configured appropriately.

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Cisco Switching/Routing :: WS-X6816-10G-2 Connecting SMF Fiber Cable To A MMF Port

Dec 12, 2012

I have a WS-X6816-10G-2T module with X2-10GB-SR modules. I will be getting a SMF hand off and the length of the termination is around 100 meters. (I will be getting another hand off for Inter-DC link for which I have X2-10GB-LR module). The question is can I connect this SMF hand off (short length) on the SR module?

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Cisco Switching/Routing :: 2811 Port Is Connected To Fiber Or Copper

Jan 14, 2013

I need Know what connection is using on Cisco 2811 router.I have this interface in Cisco 2811, I need Know if this port is connected to Fiber or Copper. I think is copper with RJ45 but I see 100 base TX/FX so this make me doubt about it because TX its for copper link and FX for fiber. [code]

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Cisco Switching/Routing :: 3524xL - Switchport Voice VLan

Nov 10, 2012

I have encountered a different issue. When I configure " switchport voice vlan 2" under f0/2 connected to ip phone, it does not have any effect.
 
Below is my set up:
Sw  is cisco cat 3524 XL.
 
ip phone-------f0/2( vlan1)-----SW----f0/1---trunk------f0/0-CME-router+dhcp
                                                          |
                                                       f0/3( vlan2)
                                                       tftp server ( 201.201.201.3)
 
switch has two vlans:
 
vlan1 (data)   200.200.200.0/24
vlan 2 (voice)  201.201.201.0/24
 
Switch management int vlan 1 : 200.200.200.3
 
router
f0/0.1  200.200.200.1
f0/0.2  201.201.201.1
 
The trunk is working correctly. (code)

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Cisco Switching/Routing :: Boot Flash Error On 3524XL

Feb 26, 2012

Every time I delete the directory flash and reinstall it, I get an error:

Error loading "flash:c2950-i6q4l2-mz.121-12c.EA1.bin" 
Error loading "flash:c2950-i6q4l2-mz.121-12c.EA1.bin" Interrupt within 5 seconds to abort boot process. 

That is the message I get. It's set to NO manual boot, but it keeps making me manually boot it. I am at a loss, I've done 3 switches and they all keep doing the same thing.

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Cisco Switching/Routing :: Cat2960 Gigabit Port Not Working?

Mar 12, 2012

Brand new 2960. When I plug a cable into the port, nothing happens. The port light doesn't begin negotiation or anything, it just stays dark. The cable works fine--I have it on another switchport with a crossover connector connecting to a little Cisco SOHO switch without problems.
 
I've done the following:
switchport
switchport mode trunk
switchport trunk allowed vlan 1
no shutdown
 
In other words, I've fiddled with it. But I don't know why it doesn't light up..

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Cisco Switching/Routing :: 3560 - Connecting Fiber To HP 2510-48 Port Switch

Feb 19, 2012

In one location we have a HP 2510-48 port switch which we need to connect to a Cisco 3560 switch. The problem I have is that we have issues connecting fibre to the HP switch, so I have decided to attached a CAT 5 to Fibre convertor at this end and another to the cisco switch.
 
My question you can not connect a HP switch to a Cisco switch, is this true or do I just need to confirgure something on the ports.

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Cisco Switching/Routing :: Catalyst 6506 And 10 GB 16 Port Fiber Module Compatibility

Sep 4, 2012

We have a core switch with the following ios and supervisor engine. Can we add a16 port LR (x2)or  LRM(X2)  ON  the core switch?if not what modifications has to be done?if an ios upgrade is necessary is it a costly affair?At present we have two 1gb up link modules in single and multimode fiber .
 
#sh moduleMod Ports Card Type  Model  Serial No.--- ----- -------------------------------------- ------------------ -----------  1   16  SFM-capable 16 port 1000mb GBIC        WS-X6516A-GBIC     SAL0803T308  2   48  SFM-capable 48 port 10/100/1000mb RJ45 WS-X6548-GE-TX     SAD07500600  5    5  Supervisor Engine 720 10GE (Active)    VS-S720-10G        SAL1439UMZK
#sh versionCisco IOS Software, s72033_rp Software (s72033_rp-IPBASE-M), Version 12.2(33)SXI4a, RELEASE SOFTWARE (fc2)Technical Support: [URL] Copyright (c) 1986-2010 by Cisco Systems, Inc.Compiled Fri 16-Jul-10 19:51 by prod_rel_team
ROM: System Bootstrap, Version 12.2(17r)SX7, RELEASE SOFTWARE (fc1) uptime is 1 year, 27 weeks, 4 days, 23 hours, 30 minutesUptime for this control processor is 1 year, 27 weeks, 4 days, 22 hours, 58 minutes(code)

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Cisco Switching/Routing :: 2851 Router Gigabit Ethernet Port

Dec 29, 2012

I have a Cisco 2851 router and need an additional gigabit Ethernet port. How to get the part number I need to order?

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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 :: 4500 24-port Gigabit Module Being Picky

Jan 7, 2013

We have recently purchased a Cisco 4506 that has several Gigabit Ethernet modules installed.One of the Ethernet Gigabit modules - a WS-X4424-GB-RJ45 - is being picky with who it talks to at Gigabit Ethernet.
 
If I plug a laptop into one of it's RJ45 ports using a Cat 6 cable, nothing happens.  No link light, no notification of link up or down on port statistics, absolutely nothing.If I plug a server into the same port it works fine at Gigabit Ethernet (even using the same Cat 6 cable).I can get the module to recognize a laptop if I fix the speed/duplex on the laptop to 100Mb/Full. I have tried this with other staff laptops from different vendors (HP / Dell / etc.) all with the same result.
 
The module directly underneath this module - a WS-X4448-GB-RJ45 - works fine for both laptops and servers.  We have tried swapping the module positions but to no avail. 

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Cisco Switching/Routing :: 6509 / Layer 3 Port Channel Between Sites Connected Over Dark Fiber?

May 21, 2013

Has anyone configured Layer 3 port channel on Cisco 6509 switches which are connected over dark fiber between two buildings?

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Cisco Switching/Routing :: 3560X - Using 10 / Duplex Half On Gigabit Port Not Working?

Sep 24, 2012

We recently upgraded the switch to which an old security device was connected.  It worked fine on the old switch's FastEthernet port, which was configured for speed 10 and duplex half, as that is what the device required. The new switch is a 3560X with all Gigabit ports, but the security device's port, also configured with speed 10 and duplex half, does not connect properly.As a temporary test, we daisychained another switch that has FastEthernet ports, and the security device works again.Is there anything else that needs to be added to the configuration, when using Gigabit ports at 10/half?

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Cisco Switching/Routing :: 3825 ISR - Traffic Route From Switch Port To Router Port

Jun 5, 2013

I'm fairly new to Cisco products am in the process of developing my network knowledge on a deeper level.  I have a 3825 with a HWIC-4ESW and I'm struggling to fully understand how the two "see" each other.  I've setup a V LAN with a layer 3 address on the HWIC and added the switch ports to it.  This seemed to allow devices connected to the switch ports to talk to the built-in router ports.  I thought this was all making sense until i applied an access-list to the router port.  It's a simple ACL i'm just using for testing and the only thing it does is blocks telnet from anywhere.  I know the ACL is setup properly because if I connect a device directly to the router port i cannot telnet to the port.  However, if i connect a device to one of the switch ports, i am able to telnet to the router port successfully. 

It seems that I'm missing something with how traffic flows from the switch port to the router ports and how the two "see" each other. 

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Cisco Switching/Routing :: Force Gigabit Ethernet Port To Be 1000 Full Duplex In Catalyst Express 500 Series?

Sep 1, 2007

Can we force the Gigabit Ethernet port to be 1000 full duplex in Cisco Catalyst Express 500 series?

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Cisco Switching/Routing :: Inter Access Switch Fiber Connectivity 2960-48PS

Jan 16, 2012

I had a strange issue yesterday when onsite installing a new access switch.Port capacity full on a two switch stack of 3750 x48 PS switches (WS-C3750- 48PS-E)- New 2960 x48 PS - WS-C2960S-48FPS-L racked, with the plan of using it just as an edge switch via SFP Stacking cable.Setup the two connecting ports with simple initial config: - switchport mode trunk- no encapsulation option on the 2960, default dot1q- dot1q set on 3750 port- no shut on both sides.Connected the SFP Stacking cable but it didnt work:- %PHY-4-SFP_NOT_SUPPORTED: The SFP in Gi1/0/1 is not supported
 
This is ok as I had a backup:- Next step tried using 2 x Short Haul SFP SX GBIC's with LC - LC OFNP 50/125 fibre patch lead  - no joy- Extra backup of 2 x Long Haul SFP LX GBIC's with the same fibre patch - no joy- Checked the fibre and it was not a cross over so transmit and receive going down the same side, switchedand still would not come up.- Used Fibre as a straight through and still the same.In all cases there was no indication of any life in the connection.It is pointing to a faulty fibre patch lead but I know it has worked in the past. Could it be something to do with the config or device incompatibility? Or any setting I need to activate?

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Cisco Switching/Routing :: VTP Traffic Not Seen On SPAN Port On 3750

Dec 12, 2011

Been dealing with a strange problem for several days now.  It started out with a problem that I thought was VTP related but ended up being something else.  I setup a span port on a 3750 that I am connected to that was mirroring the trunk connection coming into the switch.
 
Never saw an VTP traffic come across the connection but doing a sh vtp status indicated the traffic was arriving and getting processed.  When I found some debug commands (debug sw-lan vtp), I was also able to see the packets go between switches.  Seeing this issue concerns me that there is other traffic that isnt showing up during a span session.
 
I know that doing a span on a switch, especially using a trunk port as a source, isnt a good idea.  Since I didnt have a TAP at time, this was my only choice.  I have since borrowed a NetOptics TP-CU3 tap from a good friend and was able to confirm the VTP traffic was going across the trunk connection between switches.
 
All of my 3750's are running 12.2.55.SE.

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Cisco Switching/Routing :: 3550 - Redirecting Port 80 Traffic?

Dec 12, 2011

How do I redirect my port 80 traffic to my Trend Micro IWSVA in my 3550 switch? How do I use PBR? Can I use WCCP in my 3550?

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Cisco Switching/Routing :: ASA 5505 Dropping Port 443 Traffic?

May 10, 2012

Networking is not my gig, but it has to be at this very moment.  We have an ASA 5505. Let me explain what's going on.
  
On Tuesday I wanted to be able to use the ASDM since there is less room for error.  But we only had a console set up.  So I ran the following commands...
 
in ($config)   
http      of course didn't do anything incomplete command
http 192.168.1.2 255.255.255.255        didn't anything incomplete command
http 192.168.200.254 255.255.255.255 inside 

[Code]....

Everything started working after that.  Everything worked fine all of wednesday and thursday.  Then this morning it stopped processing again.  When I traceroute it gets to the machine that is hooked up to the console and stops.  So I'm guessing its actually getting to the ASA router and being swallowed up again...

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Cisco Switching/Routing :: 4510 - Command To See If Port Was Ever Up And Passed Traffic

Apr 24, 2012

I am looking to find a command or counter to tell me if a cisco switch port on a 4510 was ever up and passed traffic.  I want to shutdown all unused switchports on our access switches.  But before I do that I need to make sure device is just not off or the person is away on vacation.  If I do sh int interface, is there a counter I can reference.

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Cisco Switching/Routing :: SRP547w - Allow Traffic On Port 25 From External IP Filter?

Nov 16, 2011

Can the SRP547W be configured to allow traffic on port 25 from an external ip range to an internal address?

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Cisco Switching/Routing :: C2960S / Prevent Traffic Per Port Or Inside VLan

Nov 27, 2012

I want to know what is the best way to black traffic inside the same VLAN, this VLAN is a user VLAN, it means that I am talking about access layer.I wanted to use private vlan, but C2960S doesn't support this feature. Any other way to prevent any to any traffic in the user vlan, this vlan only have to speak at the Layer 3.

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Cisco Switching/Routing :: How To Limit Broadcast Traffic On 3560 Switch Port

Dec 17, 2012

How do I limit broadcast/mulitcast traffic on a switchport to e.g. 5000 pps ? I don't want the port to shut down, just block or drop broadcast traffic that exceeds 5000 pps.

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Cisco Switching/Routing :: Unexpected Traffic On Nexus 5000 Trunk Port?

Feb 6, 2013

So I took a laptop with wireshark and plugged it into a nexus 5000 port that is configured as a trunk with 3 vlans allowed on it. The laptop was seeing all kinds of traffic on the wire, most of it was not involving my laptop.
 
For example: Server A VLAN 10= 10.10.10.1  Server B VLAN 20= 10.20.20.1 and wireshark laptop is plugged into a trunk port which is allowing those vlan's. The vlan's are routable.
 
10.10.10.3 is seeing the entire conversation when 10.10.10.1 backs up 10.20.20.1 even though it has no reason to see it. It is as if the trunk is spanning traffic to the laptop port. No span is setup however. It's really weird. This is not just broadcast traffic, but actual tcp taffic between Server A and B. Why would a trunk port see traffic between 2 other servers talking to each other on the vlan.
 
Trunk port configuration below:
 
Interface Ethernet 141/1/3 
switchport mode trunk
switchport trunk allowed vlan 10, 20

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Cisco Switching/Routing :: 3750E - Sequestering Traffic On A Router-enabled Port

Nov 20, 2011

Is there a way to use the "no switchport command to enable routing on a port and yet sequester it from traffic on other vlans within the switch?
 
The switch in question is a 3750E

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Cisco Switching/Routing :: 6509 - Block All FTP Traffic On Port 21 From Servers In Network

Oct 3, 2012

I am attempting to block all FTP traffic on port 21 from the servers in my network, and only allow FTP from one server to go out.
 
I have created the following ACL
  
access-list 101 Permit ip any any
access-list 101 Permit 21 1.1.1.1 0.0.0.0 any
access-list 101 Deny 21 any any
 
and have applied it to my truck VPN that goes up to my firewall
 
int Vlanxxx
ip access-group 101 out
 
But when i test ftp is still allowed by all servers.

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Cisco WAN :: Add Some PA-GE Card With Ws-g5486 To Light Single Mode Gigabit Dark Fiber

May 14, 2012

I have a 7206vxr with a NPE-G1 card in it. I am planning to add some PA-GE card with a ws-g5486 to light single mode Gigabit dark fibre.

 it seems that users are experiencing throughput of around 200Mbps. Is this per card, or for the entire chasis? I have 6 free slots, if i were to fill 3 of them up with PA-GE card would i get 200Mbps on each card ?

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Cisco Switching/Routing :: Lose Lot Of Bandwidth Over Trunk Port (vs Access Port) 3750g

Feb 18, 2013

I have a 3750g connected to a "core" switch stack of 7 other 3750g's via 2 GigE ports in a trunk.  This is currently in a switchport mode access port- channel so only the default vlan data is sent over. Now we have a need due to physical location of these switches, to allow vlan20 (DMZ) from this 3750g to the switch stack.  I will configure a few ports on the switch stack for vlan20 and they need to be able to talk to the stand alone 3750g.To do this I will change the port channel on both endpoints to

-switchport trunk ecapsulation dot1q

-switchport mode dynamic desirable
 
also making the appropriate change on the interfaces belonging to this trunk.My question is, now that its a trunk port that carries multiple VLANs, how much is the bandwidth reduced on that 2gbps link?I have a very active VLAN (10) on the stand alone switch, but on the core I'm not going to be assigning VLAN 10 to any ports.  So does traffic from VLAN10 even come across the trunk (wasting bandwidth) if no ports on the core side are assigned to it?  I really just need vlan 1 and 20 (for now).

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Cisco Switching/Routing :: Limiting Outgoing Traffic On Single L2 Port On Nexus 7000 1GB

Aug 4, 2012

I am trying to limit the incoming and outgoing traffic on a l2 port to 8mbps for a ip subnet within the nexus 7000. The port is connected to my ISP router which has a bandwidth of 20mbps.Policing won't work on a l2 Port and shaping cannot be applied on a port level. url...I have been reading thru the qos guide for nexus release v6 and have problems understanding the different queues.

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