Cisco Switching/Routing :: Why Won't 3750 Auto Discover

Jun 6, 2012

I have a 3750 that when a client computer shuts down the switch will not discover it on start-up unless I bounce the switch.  Pretty dependable product so,.... did I miss something in my config? Switch is GBIC'd for Fiber?

View 2 Replies


ADVERTISEMENT

Cisco Switching/Routing :: Auto-QoS On Catalyst 3750 LAN Switches?

Aug 12, 2012

why the AutoQoS macro does not implement "priority-queue out" when configured on the 3750 platform running certain versions of software. The only other platform I have experience with AutoQos is on the 4500 and it enables priority queuing as expected. So what's up with autoqos on the 3750 on version 12.2(35)SE5?
 
When it comes to configuring QoS on campus user/phone access ports there are some important settings that can and should be considered but one can argue that enabling the priority queue is the single most impactful or important command. So I was very surprised and concerned when I didn't see priority-queue out. Cisco describes AutoQoS as a simple, quick way of deploying QoS on the LAN and it precludes you from having to learn all of the differences between hardware platforms. But is it true that this tool produces an incomplete config solution? Let me know if I am missing something.
 
Here is an example of what AutoQoS produces when applied to a 4507 with WS-X4648-RJ45V+E:(other interface commands are left out for simplicity)
 
interface GigabitEthernet5/25description XYZ
switchport mode accessauto qos voip cisco-phoneqos trust device cisco-phoneservice-policy input AutoQos-VoIP-Input-Cos-Policyservice-policy output AutoQos-VoIP-Output-Policy
 policy-map AutoQos-VoIP-Output-Policy
class AutoQos-VoIP-Bearer-QosGroup
set dscp ef

[code]......
 
Here is an example of what AutoQoS produces when applied to a 3750 running version 12.2.(35)SE5: (no priority-queue out)
 
interface GigabitEthernet1/0/36
switchport access vlan 8
switchport mode access
srr-queue bandwidth share 10 10 60 20
srr-queue bandwidth shape 10 0 0 0

[code]......

View 1 Replies View Related

Cisco Switching/Routing :: 3750 Auto-QoS Egress Discards

Dec 18, 2011

I have an issue where I'm seeing output discards on pretty much all my ports configured for QoS. The switches are cisco WS-C3750V2-48PS running 12.2(50)SE1. There are four switches stacked using stack cables. The QoS implemeted was auto-qos with no modifications to the standard config. All ports are in queue-set 1. The phones connected are Cisco 7942's. Already did the standard check for speed duplex mismatch, crc's, runts, giants, etc...No discards before the QoS was applied. No bug ID's I could find regarding these switches and this IOS version. The one thing noticed is that 99% of all the drops are from queue's 2 and 4 or 1 and 3 doing the below command.
 
**I've limited the cut and paste as to not clutter the discussion until someone requests something else**
 
show platform port-asic stats drop
Port 18 TxQueue Drop Statistics
  Queue 0
    Weight 0 Frames 0
    Weight 1 Frames 0
[Code]....

View 5 Replies View Related

Cisco Switching/Routing :: Auto Qos Dropping Port Channel In 3750?

May 13, 2012

We have a switch that, when configuring auto qos on and edge port facing video equipment, the upstream port channel drops. I was wondering if no auto qos would have to be configured on the member ports of the port channel prior to enabling auto qos on any other ports. 

View 2 Replies View Related

Cisco Switching/Routing :: How To Get DCNM To Discover 5548

Feb 21, 2012

I am trying to get our DCNM to discover the 5548. When I put my credentials for that appliance. I get this error .Failed Device x.x.x.x OS Version 5.1(3)N1(1) is not supported . The DCNM version we have is 5.2(1)S74.

View 1 Replies View Related

Cisco Switching/Routing :: DCHP Discover Packet Rate Limiting 6509s

Sep 11, 2012

We have a number of 6509s which generally have dhcp relay agents configured on the SVIs.  The dhcp servers are centralised.  Recently we've had one or two faults with misconfigured or faulty devices (blade server chassis and also printers) generating high volumes of dhcp discover packets and causing high cpu on the relevant 6500.  I would like to rate limit these discover packets, which are layer 2 broadcasts.  Storm control can't discriminate between different types of broadcasts and on a gig link would need to be set down at about 1% to have much effect on the problem.  I've looked at CoPP and also mls hardware rate-limiting but as I understand it, these two features don't control broadcast traffic. I also looked at dhcp snooping but if an interface receives a high level of dhcp discover broadcasts, e.g. over 100pps, I don't want it to go error-disabled (as this would knock down the whole edge switch),  just to drop the excess packets.

View 2 Replies View Related

Cisco Switching/Routing :: Auto QoS On 4507R-E?

Mar 15, 2010

I have a 4507R-E chassis with Supervisor IV running IOS 12.2(50)SG.  I am trying to configure "auto qos voip trust" on some of the uplink ports.  When I try to configure it on a port that is in a channel group, I get the error "AutoQoS Error: AutoQoS can not be configured on member port(s) of a port-channel".  I have also tried configuring it on the channel interface, but it is not an available command under the channel interface.  Is there a way to do auto qos on the channel interfaces or their member ports or does it have to be configured manually?

View 12 Replies View Related

Cisco Switching/Routing :: 4948 - Regarding IOS Image And Auto QoS

Mar 8, 2013

I have 4948E module switch at customer site and below is the show version output. Image on the switch is not supporting 'AUTO QoS' as i need to enable Auto Qos on it to prioritize Voice traffic. Which image supports Auto QoS feature . Image should have L3 functionality also i mean it should support Routing protocols. I tried to enable auto QoS using by configuring "QoS' globally but no luck...with existing image.
 
{ URL} 
ROM: 12.2(44r)SG9
Hobgoblin Revision 20, Fortooine Revision 1.22
Switch up time is 12 hours, 1 minute
System returned to ROM by reload
[ code]...

Configuration register is 0x2012
Switch#sh boot flash:
-#- --length-- -----date/time------ path
1     25793234 May 31 2011 15:20:20 cat4500e-entservicesk9-mz.122-54.SG.bin
2     25005209 Mar 08 2013 09:53:18 cat4500e-entservices-mz.122-54.SG1.bin
 
 70033408 bytes available (58249216 bytes used)

View 1 Replies View Related

Cisco Switching/Routing :: 4500 Series Switch Auto Reboots

Apr 1, 2013

We are facing cold start issue on 4500 series switch. The switch is restarting automatically almost weekly twice or thrice.As per show tech. output , there is "cold start log".Please find the attached  logs for your reference.After time change , auto restart happening & am not found any log for power failure also.

View 6 Replies View Related

Cisco Switching/Routing :: 1141 WAP Won't Work With Auto Diagnostic Tool

Jan 7, 2013

We just replaced our Cisco 1240 AP in one of our shops with a Cisco 1141 AP.  This is not controller based.
 
We use several wireless (infrastructure mode) auto diagnostic tools which connect to the AP.  We also have many laptops which run the diagnostic software.
 
We had no problems with our 1240AP.  With our 1141, we cannot connect to the wireless tools if both the laptop and the tools are connected to the 1141.  If I connect one to the 1240 and one to the 1141, they can see each other and work fine.  IF they are both connected to the 1141, they show up as connected in the AP, they can ping each other, but the software does not communicate. 
 
[URL]

View 7 Replies View Related

Cisco Switching/Routing :: 4500 Sup6E Auto QoS Configuration On PortChannel

Jun 28, 2012

I configured Auto QoS on some access ports on two 4506-E (Sup 6E-L) and I wanted to apply the same generated config on the port channel/port channel members but it didn't work.
 
Ex:
int gig1/3
service-policy input AutoQos-VoIP-Input-Cos-Policy
% A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port.

[Code].....

View 1 Replies View Related

Cisco Switching/Routing :: 1841 Enable ICMP After Auto-secure

Dec 31, 2011

I ran autosecure on my 1841 routere and now I cant do ping or traceroutes. What should I do to enable the pings and traceroutes after auto secure is done.

View 1 Replies View Related

Cisco Switching/Routing :: 6500 - How To Set Switch On Auto Terminal Server

Apr 22, 2012

I have a switch(6500) with 2 vlans(2 SUBNETS) and from the other side of my network i have 2 terminal servers.

I want to have a VIP in my 6500 switch which i have the 2 vlans and when the first vlan(network) try to connect to the VIP

my switch will forward to first terminal.When the second vlan try to connect to VIP the switch will forward to second terminal.
 
I'd like the switch to decide in wich terminal server will forwared the packet based on source network.
 
I am not sure how i can do this???I use VIP with SLB???I use NAT???PBR?

View 4 Replies View Related

Cisco Switching/Routing :: 1941 Auto Failover With Load Balancing?

Jan 27, 2013

One of our customer has  3 ISP Line, out of which Two are Broadband and One is Leased Line.   All 3 ISP interfaces are Etherent.
 
Now, they want Auto Failover with Load balancing among these 3 ISP lines.
 
Can we do same implementation in Cisco 1941 Router??  What licenses required in router for same?

View 1 Replies View Related

Cisco Switching/Routing :: Difference Between Auto Qos And Voip Trust With C2960S

Aug 1, 2012

Are there any differences between the autoqos commands on a WS-C2960S switches (or in any other series)? Follow the commands:
 
- auto qos trust
- auto qos voip trust
 
I was checking the documentation on this link:
 
URL

And couldn't find any great difference between the two commands, as far as I could see they'll set the Ingress and Egress queues the same way.
 
Are there any differences between those two commands (auto qos trust and auto qos voip trust)? If so, when should I use one and the other?

View 2 Replies View Related

Cisco Switching/Routing :: Auto-redundancy Using Etherchannel In 2960 Not Working?

Apr 15, 2012

I'm using Packet Tracer for testing since I don't have the actual equipment. I have configured etherchannel between two 2960 Switches. I have used the trunk ports FE  0/23 and FE 0/24 on both switches to create the etherchanel. I have connected one PC with each switch. The PCs are in the same VLAN and can ping each other. Howver, when I take down one of the links in the etherchannel, the other link does not take over and I get 100% packet loss. I don't know what seems to be the problem. I'm quoting the configurations below:
 
Switch0:
Switch#sh running-config
Building configuration...
 Current configuration : 1179 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec

[code]....

View 3 Replies View Related

Cisco Switching/Routing :: 3750X Stack Auto Vs Manual Upgrade

May 8, 2013

Are there issues with the auto upgrade feature for 3750X stacks, either historically or currently?
 
Some people prefer to upgrade switch stacks manually by disconnectiong the stack cables and uprading code on each switch. 
 
I've done the manual procedure in the past and have not tried the auto upgrade (I have the procedure for the auto upgrade).

View 18 Replies View Related

Cisco Switching/Routing :: Perform STFTP On 3750 Or 3750-X?

Jun 30, 2012

Do I need the Universal image to perform stftp on a 3750 or 3750-X?

View 8 Replies View Related

Cisco Switching/Routing :: 6509 - In Auto Negotiation Mode It Comes Up In Half Duplex

Jun 11, 2012

We are facing to an annoying issue. We have a 6509 running in Catos 8.3(4) with WS-X6548-GE-TX, WS-X6348-RJ-45 and WS-X6148-RJ-45. When we configure the mode in auto negotiation, it comes up in half duplex. We need to configure the speed mode at 100Mbit/Full to make it work. But if the chassis or port restarts (not the server), the link becomes half duplex. This happens only on module in Gigabyte like WS-X6548-GE-TX.

Cable have been replaced but does not work. It is not happened on another chassis running on IOS 12.2(18)SXF17b with WS-X6548-GE-TX.

View 4 Replies View Related

Cisco Switching/Routing :: Nexus 5500 Support Auto Negotiation On 1gig Sfp Port?

Jul 28, 2012

Nexus 5500 support auto negotiation on 1gig sfp port? There is an end device that only support auto negotiation and cannot be manually set speed/duplex.

View 0 Replies View Related

Cisco Switching/Routing :: 7600 Service Provider Has 1000-Full With Auto-negotiate

Jan 21, 2013

I have a port on 7600 connecting via Single Mode Fibre to my service provider. Service provider has 1000-Full with auto-negotiate. I am seeing following output on my 7600. [code] if this interface is only capable of doing 1000Mb, how come it is showing 100-Full. If I change to nonegotiate option (both my side and provider side), link goes down. My provider has confirmed they have 1000Full their side.

View 2 Replies View Related

Cisco Switching/Routing :: Switch Port Auto-state Exclude Command Not Working In 4500

Jun 3, 2013

I have configured a SVI in my 4500 ( Sup 7-E 10GE,,,,,,and,,,,,cat4500e-universalk9.SPA.03.02.00.SG.150-2.SG.bin) switch and it is showing Down Down, because there were no active switch port in the vlan, I added one switch port to this vlan but this port also in the down state, so i added the SWITCH PORT AUTO STATE EXCLUDE command under this port, even after this also the SVI never came up, So i added one systen to the port so both the switch port and the SVI came up...So why SWITCH PORT AUTO STATE EXCLUDE command have no effect in this model of the switch..

View 4 Replies View Related

Cisco Switching/Routing :: 4510R-E / Unable To Create A Port-channel And Apply Auto-qos For VOIP

Sep 15, 2011

I have a 4510R-E chassis with SUP7-E running IOS XE version 3.01.01.SG.  I am unable to create a port-channel and apply auto-qos for VOIP.If I configure auto-qos on the physical interfaces, I get this message when I try adding them to the port channel:
 
"The attached policymap is not suitable for member either due to non-queuing actions or due to type of classmap filters."
 
Auto-qos is not an available command in the port-channel interface configuration, but if I try adding the service policies that were created by auto-qos to the port channel manually, it lets me apply the input policy but on the output policy I get this message:
 
"A service-policy with queuing actions can be attached in output direction only on physical ports."
 
With the input policy applied to the port-channel interface, I tried addign the output policy to the  physical ports and I got this message:
 
"A service-policy with non-queuing actions should be attached to the port-channel associated with this physical port."
 
Is there a way to get the auot-qos policies applied to the port-channel properly?

View 3 Replies View Related

Cisco Switching/Routing :: Stacking 3750-X With Universal Image With 3750-G Running BIN Image?

Oct 10, 2011

I'm looking at adding a Cisco 3750-X switch running c3750e-universalk9-mz.122-55.SE1 (IP base license) into a stack of 3750-G switches running c3750-ipbasek9-mz.122-55.SE1.bin Given that the version and feature sets are the same I don't forsee any compatibility issues. Would there be any reason why a universal image wouldn't stack correctly with other switches running the single .bin file?

View 9 Replies View Related

Cisco Switching/Routing :: Replacing 3750 24 Port With 3750 48 Port?

May 21, 2012

We have a stack of switches that is at the max number of members allowed in the stack. Problem is we are running out of port density and need to add more ports. So instead of adding a whole new stack I would rather replace 2 of the 24-port swicthes with 48-port switches.
 
If the two 24-port swicthes we are removing are stack members and neither of them are the stack master, I should be able to replace the 24-port switches with the 48-port switches without bringing the master offline? If the new 48-port switches are running the same IOS version as the current 24-port swicthes, they should add themselves to the stack?Would I have to tell the new 48-port swicthes what switch numbers they are replacing in order for them to be added to the stack since we are at the max number of members?Also since the 48-port swicthes are replacing 24-port switches will the master give the 48-port switches the configuration for only the 24-ports?

View 11 Replies View Related

Cisco Switching/Routing :: 3750 - L2 Trunking Versus L3 Switching

Dec 9, 2011

some of our switches have the switchport mode trunk command configured between the 3750 switches but other 3750 switches connected to our 6509 core switch do not have the switchport mode trunk command to permit Vlans from going across the swtiches instead it has an ip address and says no switchport what is the difference between does two. Is trunking used only for Layer 2 and L3 is used to route  interface vlans?

View 2 Replies View Related

Cisco Switching/Routing :: Multiple VLAN Routing Tables For 3750 Catalyst

Oct 24, 2012

I have a network with a Catalyst 3750 as the main switch and then some Catalyst 2960 switches that are plugged in to that. I have a server running windows server 2008 with a couple of virtual machines running in Hyper-V. I created 4 VLANS listed below and gave the 3750 the following IP Address.I would like the 3750 to only be configurable from VLAN 40 but currently every VLAN can connect to it, I noticed in the standard web page settings there was a setting for "Management VLAN" but it was set to 1 and would not let me change it, I kinda assumed that was for the management port in the back.-Now the tricky part, I was trying to set up routing between the VLANs and so far I have only been able to get a sort of "all or nothing" routing to work. I can turn IP routing on and add two or more VLANs to the routing and it works fine. But what I was hoping to do is create a couple of "junction vlans" that would only route to one or two other vlans. For instance, I wanted to create a VLAN 100 that routed to VLAN 20 and 30 but nothing else. I also want to route VLAN 1 just to VLAN 30, and so on. I am able to do each one of the cases but only one, it seems like the switch only supports one "routing table" am I missing something or is this just a limitation of the switch?

View 2 Replies View Related

Cisco Switching/Routing :: Is 3750 SW Capable Of Handling Full Routing Tables

Oct 8, 2012

Is a 3750 sw capable of handling full routing tables and what can you recommend in a small mutihomed BGP router or switch capable of handling full routing tables?

View 2 Replies View Related

Cisco Switching/Routing :: Catalyst 3750 Multi-cast VLAN Routing

Oct 28, 2012

I have a network with several catalyst 2960 switches and one catalyst 3750. I have created two VLAN and set up the proper routing and everything is working fine there. I have a client/server application that used multicast in the initial start up for the client to determine available servers, the issue is one of my clients is on a different VLAN then the server. I am able to route the multicast using MVR as long as both the server and the client are plugged into the 3750 by creating a static route, making the server a source port and the client a receive port. Unfortunately I need the client and the server plugged in to different 2960s. My question is how do I establish multicast routing between the two and perferably do it dynamically (always route multicast traffic from one VLAN to another).

View 2 Replies View Related

Cisco Switching/Routing :: Inter-VLan Routing On Catalyst 3750 Switch

Dec 17, 2011

I have been looking into this for a while and I can't seem to figure out why my 2nd vlan is not able to connect properly to the net.
 
My switch has 12 ports where my devices connects directly, they are all on Vlan 1 and they all work perfectly. on Port 12 I have a dlink router that is connected to a cable modem. the dlink router has an Ip address of 192.168.0.20
 
I created a second vlan (vlan2) and enabled dhcp relay on it. then I assigned port 9 on the switch to  (vlan2)my laptop which is connected to port 9 seems to get an ip address fine and able to ping only some devices on my network (vlan1) and is not able to go out to the internet.  I think it has to do with the routes. [code]

View 4 Replies View Related

Cisco Switching/Routing :: 3825 / Replacing Routing Function With 3750 Switch?

Jul 27, 2012

I have the task of replicating the router config on a 3825 router on a 3750 switch. Reason is we are taking out the router and replacing it with the switch to make use of the router for other functions.
 
Below is main part of the router config:
 
!
ip source-route
ip cef
!
!
multilink bundle-name authenticated
!
license udi pid CISCO3825 sn FCZxxxxxxx
!
vlan internal allocation policy ascending

[code].....
 
The 3750 switch I have runs C3750E-UNIVERSALK9-M, Version 12.2(55)SE3 on a LAN BASE license.
 
The first thing I have done is to order for a license upgrade to IP BASE which would give the support for OSPF routing.I do not see much of an issue with the Interface configs, however, I am not too sure about replicating the routing config on the switch.
 
My question is can I run the commands as shown for the OSPF routing on the switch? If not, can I get suggestions on how best to set this up on the switch?

View 4 Replies View Related

Cisco Switching/Routing :: 3750 Inter Vlan Routing Configuration

Mar 24, 2013

In 3750 switch,I have configured intervlan routing.I have three vlans Vlan 10,vlan 20,Vlan 30 and I have assigned IP address for that Vlan.In vlan 10,I have connected one systen gigabitethernet 0/1 interface.From my system I am able to ping vlan 10 ip address but I can't able to ping other vlan ip address (vlan 20,vlan 30).Is it possible to up the protocol for all that time.

View 2 Replies View Related

Cisco Switching/Routing :: IP Routing On 6500 Series Versus 3750?

Jan 24, 2013

For intervlan routing, Is 'IP routing' command enabled by default on a 6500 series switches based on the IOS?and on 3750 switches, do we need to enable the "ip routing" command manually for intervlan routing?

View 1 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved