Cisco Switching/Routing :: 3750 Manage And Configure An External Switch And Router

Apr 3, 2013

1. How I can manage those devices, the Switch and the router? What is the BEST SOLUTION to manage this devices?
 
2. I want to monitor the traffic on this environment, how I can do it? How I can monitor the traffic from customer A, Customer B, and my own LAN traffic, in terms of bandwidth that has passed throught my devices? Is it possible to monitor on MY LAN, or I have to monitor from the EXTERNAL switch?
 
3. How I can limit the bandwidth? I was trying to configure it using access list, with policy-map, etc....and limit this on each interface. [code]

The interface does not support the specified policy configuration and/or parameter values.Assigning a policy map to the output side of an interface not supported.With I few reading, I could see that the SWITCH 3750 doesnt support this configs.My INTERNET LINK is 30 Mbps, the ports on the Switch (WS-C3750X-48P-L) are Gigabit Ethernet.How I can limit the bandwidth here? For example, How I can limit a interface to 3Mbps..I was thinking about this:

- Limit the interface to 10Mbps: speed 10

- and limit the interface with 30% of this speed:  srr-queue bandwidth limit 30
 
Does this work for both UPLOAD and DOWNLOAD?When the packets passes that 3Mbps limitation, will they be droped?

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Cisco Switching/Routing :: 3750 / Manage Multicasting On Another Router?

Feb 28, 2012

Within our small lan we have a core 3750, that handles our intervlan routing and is the core of the network. I recently looked into multicasting and set up a lab test with a 3550 with an EMI image and got the config to multicast to all vlans from one vlan, ready to go, at which point I found that our 3750 is IPBASE and doesn’t support multicasting. Currently upgrading the switch or image is not an option due to funding. My question is would it be possible and advisable to install our lab 3550 as a leg off the core, and in some way route multicasting traffic through that?I just cant get my head around the concept of having a core switch essentially routing all vlans, and then having another switch route the same vlan traffic again for multicasting to all the vlans again.

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Cisco Switching/Routing :: 3750 / 3800 - Configure Trunk Between Switch And Extreme Switch

Nov 2, 2011

i have an issue to connect a trunk between cisco switch and extreme switch i have many vlans that i want to cross via a link between cisco 3750 switch and a Extreme Alpine 3800 switch

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Cisco Switching/Routing :: Configure QOS In 3750 Switch?

Nov 7, 2011

configure qos in Cisco 3750 switch.I have configured below template and applied on the vlan interface.But i am getting the hit on the access list but I am not able to get hit on the class map.

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Cisco Switching/Routing :: How To Configure GLBP On 3750 Stack Switch

Nov 30, 2011

I have WS-C3750-48PS-S, i wanted to implement GLBP on this switch, Is it possible to configure GLBP on this switch?
 
IOS :                    c3750-ipservicesk9-mz.122-55.SE4.bin
Part number:     WS-C3750-48PS-S

[Code].....

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Cisco Switching/Routing :: Configure LACP In 3750 For Two Port Connected To Dell M6220 Server Switch?

Aug 1, 2012

We have Dell M6220 blade server that server is connected to cisco 3750 switch. I am trying to configure LACP in 3750 for two port which are connected to Dell M6220 server switch. The channel-group 2 mode  active commande is not taking then its showing the error protocol mismatch and if i run show int port-channel 2 command the port channel status is showing down. The Dell server switch is on simple mode. below i have attached the required details.

Switch#show int port-channel 2
Port-channel2 is down, line protocol is down (notconnect)
  Hardware is EtherChannel, address is 0000.0000.0000 (bia 0000.0000.0000)
  MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set

[code]...

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Cisco Switching/Routing :: 3500XL - How To Manage Layer 2 Switch

Sep 5, 2012

My understanding is that even layer 2 switches like the Cisco 3500XL can have 1 IP address for management.  However, I cannot seem to figure out how to configure it to get it working in a router on a stick setup.  I can manage the router through SSH, but I cannot SSH to the switch.      

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Cisco Switching/Routing :: Using Web Console To Manage 2960 Switch

Nov 13, 2011

I have a client whom has asked me to enable web management on some of his 2960 switches. I did not think this was going to be an issue, and so I told the customer I would set this up for him.
 
Much to my dismay, I have been able to get http and https enabled, and then authenticating locally for the HTTP access.  I then come to the screen once authenticated which is shown below:
 
The issue is that when I select "Web Console", it gives me a "Web Page Cannot be found". 

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Cisco Switching/Routing :: 4506 - Cannot Manage One Switch Via Network

Nov 30, 2011

I have three 4506 switches with vlan 4 set as the management vlan. Switch 1 is connected to switch 2 and switch 3.
 
I can access switch 1 and 2 using telnet from the management vlan and both switches reply to pings. But from switch 1 or 2 I cannot ping or telnet switch 3. If I plug into switch 3 and I can ping and telnet switch 3 but not switches 1 or 2.
 
It is as if the management vlan 4 is not being passed to/from switch 1 and 3. The configs for the uplinks from switch 1 to 2 and 3 are the same. And the configs for switches 2 and 3 look the same apart from the port settings.
 
I have over 40 vlans running all that work fine between all the switches.

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Cisco Switching/Routing :: Can Use Switch 3750 As Router Layer 3 Without NAT

Jan 13, 2013

I've created a scenario using a 3750 cisco as core switch ad other 6 switch model 2900 in access level.my problem is this, the router is not a cisco router, and this router is not able to make NAT on more than one subnet.Into the core switch I've created 4 VLAN and I must to give internet access to 3 of them, 192.168.0.0/24 (vlan1), 172.16.0.0/24 (vlan2), 172.17.0.0/24 (vlan3).I've connected the switch to router via  gigabit ethernet 0/1 and I've assigned to this interface ip address 192.168.10.2, the router ip address is 192.168.10.1, Switch ip default-gateway is router ip address 192.168.10.1, ip default route is 0.0.0.0 0.0.0.0 192.168.10.1 I've enabled ip routing feature and I've set no switchport feature to interface gigabit ethernet 0/1.From core switch I can ping router ip address but I can't make it from all other user, and the users not able to have internet access.

Below the switch configuration (only necessary strings)
 
version 12.1
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption

[code].....

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Cisco Switching/Routing :: 7000 / 3750 Stack - HSRP Between ISPs Router And L3 Switch

Dec 27, 2012

We have our WAN setup as explained in the attachment herewith. As of now, We have a IP 1 configured as HSRP IP in the LAN switch end at Site A and Site B. As per the HSRP priority, Site A's WAN router will preempt to be the Active WAN router. 1*1Gig link at both DCs connect to the respectve WAN router.
 
But with this setup, we experience a WAN outage whenever there is a link disconect at Site A - as HSRP fails over from Active to Standby(Site B) and again when the link at Site gets restored. To avoid this :
 
Is it possible to have the HSRP configured over a port channel at Site A and B (or atleast at Site A) ? In that case, will there be a need for the ISP to change their configuration except to configure a port channel ? The ISP has Cisco 7000 series router which connects to 3750 stack at DC lan.

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Cisco Switching/Routing :: 3750-X Stacking Switch By Switch

Nov 18, 2012

I have two 3750-X configured to be a stack and I am planning to re-rack these somewhere else.  What I would like to know is what are the effects of having the master switch itself lose power?  Does it immediately just make the member take over master (there should be no election since there are only 2 switches??) and there would be no loss of connectivity?

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Cisco Switching/Routing :: How To Configure Policy Based Routing On 3750

Jan 28, 2013

In our datacenter we have a 3750 stack with IP base image.  I have enabled PBR and reloaded the switch.  Show sdm prefer says i am using default template.  The reason i want to use PBR is that we have 2 firewalls on the same work and want to be able to have granular control over which gateway out of the network they use but still be able to access all internal resouces accross wan and locally.

Created access list to identify traffic:
 
access-list 10 permit 10.2.3.59 (test workstation on vlan 3)
 
Created policy:
 
route-map TestASA permit 10
match ip address 10
set ip next-hop 10.2.0.3
 
Assigned policy to the user vlan3:
 
ip policy route-map TestASA
 
Results:It changed the default gateway to the above gateway but i could not access any resources on any other vlan, could not access resouces accross wan. 

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Cisco Switching/Routing :: Configure Inter Vlan On 3750 Series?

Jun 25, 2012

I have 3750 series with GIBICs ports I want to create 10 vlans with its sub-net and enable all vlans to access internet.

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Cisco Switching/Routing :: 3750 How To Configure HSRP In Client Location

Apr 9, 2013

How to configure hsrp in my client location.They have 1 no of router and 2 no of 3750 switch.they need to configure Hsrp in switch.

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Cisco Switching/Routing :: Configure Inter-vlan On Catalyst 3750

Dec 20, 2012

My architecture is the same as show on the link with some difference.I use the router 1841 for inetrnet connexion instead of 7200VXR, this router 1841 is connected on the catalyst 3750 port G1/0/1.I use catalyst 2960 instead of catalyst 2950 or 2948.I use ASA 5510 for conexion on remote branche(I have 5 remote site), This ASA is connected on the catalyst 3750 port G1/0/37
 
Result of the test:

-I can ping devices in the same Vlans
-I can ping devices in different VLANs
-I can ping all device from the catalyst 3750
 
I cannot ping the router 1841 or ASA 5510 from the any devices (computer)The gateway of each computer is the correpondant VLAN IP address configured on the catalyst 3750.Why I cannot ping the router 1841 or ASA 5510 from the any devices (computer)

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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]

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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?

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Cisco Switching/Routing :: About Intervlan Routing On Catalyst 3750 Switch

Apr 16, 2012

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.

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Cisco Switching/Routing :: Cannot Reach Gateway Through Routing Switch (3750)

Mar 11, 2012

I'm running into what seems a basic ip routing config problem with a Catalyst 3750 (IP Base) switch. I have several VLANS configured on the switch with IP routing enabled, and the switch is connected to the inside interace of a new ASA 5520 as follows:
 
ASA5520 IP (Default gateway): 192.168.1.1Switchport Gi1/0/1 is configured as a routed port, IP address 192.168.1.3 255.255.255.0Example VLAN is VLAN 100, IP address 192.168.100.1 255.255.252.0 From the switch CLI, I can ping all VLAN addresses, as well as the ASA5520, and the client laptop I'm testing with from VLAN 100.
 
From the client laptop on VLAN 100, I can ping all switch interface and VLAN addresses (inter-VLAN routing is working), including 192.168.1.3, but I CANNOT ping the default gateway at 192.168.1.1.
 
Here is the relevant configuration information on the 3750:
 
!
no aaa new-model
switch 1 provision ws-c3750x-24
system mtu routing 1500

[Code]....

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Cisco Switching/Routing :: 3750 - Configure Syslog Server For All Of Device Logging?

Feb 5, 2012

I'm looking to configure a syslog server for all of my cisco device logging. I've had a look at CNA and can't find any options to define a syslog server for my switches.
 
What's the best way to define a syslog server and the severity of the notifications? Also, i'm looking to clear all previous Syste mmessages fon my devices?

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Cisco Switching/Routing :: Configure Port-Channel Or Physical Interface On 3750

Jan 12, 2012

how to configure this. I did it in the past but kind of forgot how I did it.I have a stacked 3750 (two physical switches) connecting to a 2960.
 
I am creating trunk ports with limited access to VLAN 300, 600, and 700.
 
There is two interfaces connected from the 3750's(one on each physical stack member) to the 2960.I have the physical interfaces configured exactly the same.
 
3750 Config:
 
interface Port-channel2
!
 interface FastEthernet1/0/46
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1, 300,600,700
switchport mode trunk
speed 100

[code]....

Should I keep the configuration on the physical ports and not configure the Port-Channel Interfaces? Do I need to configure port-channel load balancing? Is the channel-group mode sufficient? Goal is to basically create 2 links to the 2960 to double the bandwidth and provide redundancy.

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Cisco Switching/Routing :: AP-C2R1C5-3750 / Configure Scp For Secure Configuration Backup

Sep 16, 2012

I'm trying to configure scp for secure configuration backup. I've configured the SCP server with an account and password but, I keep getting the no such file or directory error
       
AP-C2R1C5-3750#sh run | b arch archive path scp://mchenry:PASSWORD@172.20.22.229//C:/Program_Files/OpenSSH/Cisco_Configs/Switch_Config
 username mchenry privilege 15 password 7 XXXXXXXXXXXXXXXXXXXXX
 ip scp server enable
  
Error: %scp: /C:/Program_Files/OpenSSH/Cisco_Configs/Switch_ConfigSep-17-16-04-44.172-1: No such file or di
 
SWITCH#ping 172.20.22.229 Type escape sequence to abort.Sending 5, 100-byte ICMP Echos to 172.20.22.229, timeout is 2 seconds:!!!!!Success rate is 100 percent (5/5), round-trip min/avg/max = 33/33/34 ms

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Cisco Switching/Routing :: Switch 3750-X Vulnerability

Jul 19, 2012

I had a bad expirience with Switch 3750-X. Because of an auditing security processess, my customer ran a software called "Nessus" to do a scanning of vulnerability on the network. When this software is point to switch, the process of the switch will next to 100% and reset. The software only do a listening on the ports to see what ports are opened and the switch should not reset because this. Bellow is the log os switch on the moment of test; we note that the processess 'HTTP' rise moments before the switch reset. I disable the HTTP service on switch but the problem persist. The test was made only one machine connected to switch.

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Cisco Switching/Routing :: 3750 POE Switch Stacking?

Aug 12, 2012

We have three Cisco 3750 - 48port  POE -LAN switches and i am trying to see if there are any issues when we stack POE and Non-POE type of switches.Aslo looking for information on the advanatage and disadvantage the stacking can provide on a Cisco 3750 48port.

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Cisco Switching/Routing :: Setting MTU On A 3750 Switch?

Dec 12, 2010

The question is: Will a 3750 switch route Jumbo frame sizes (e.g. 9000 MTU)?
 
We know that we can change the System MTU to 9000, and someone on a previous thread said that we can change the Routing MTU to 9000 as well, although I couldn't figure out how to do that.  However, regardless of how we configure the System MTU and Routing MTU, I don't think we're able to adjust the MTU on L3 VLAN interfaces, so if we want to actually "route" between VLANs on the switch, we're limited to 1500 MTU.
 
Our situation is that we have a customer connecting to our 3750 switch, and this customer wants to use Jumbo frames.  The customer connects to our 3750 switch via their own VLAN, with their own L3 VLAN interface configured on the switch.  The customer will point their traffic towards the L3 VLAN interface, then we want to route them onto another VLAN, via a different L3 VLAN interface, before forwarding their traffic.  Because of the limitations noted above, specificially regarding the routing between these VLANs via L3 interfaces, I do not think we'll be able to support 9000 MTU frames on this 3750 switch.  I think the L3 VLAN interfaces will limit us to 1500 MTU, regardless of what we configured via the global System MTU and Routing MTU settings.

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Cisco Switching/Routing :: Remove QOS From 3750 Switch

Jun 8, 2007

How do you properly remove the QOS queues and configs from the switch.A was using auto qos which created a whole mess of qos configs on my running-config. I did "no mls qos" in conf term but that did not remove the queues.

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Cisco Switching/Routing :: 3750 / Add A New Switch In Stack?

Jun 21, 2012

i want to remove an access layer 3750 48 POE master switch and replace with a  new 3750 switch in the stack. i want to copy the same configuration to new switch since the old switch is having POE issue and I got replacement of the malfunctioned switch. we have VTP domain is configured in the network...

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Cisco Switching/Routing :: 3750 - Cannot Communicate With Switch

Sep 11, 2012

Cisco 3750, I'm trying to reset the password but cannot communicate with my switch

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Cisco Switching/Routing :: 3750 - Way To Connect Another Switch

Dec 9, 2012

is it generally possible to connect another switch, such as a 3750 to a port of a fabric extenders (C2232PP-10GE)?

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Cisco Switching/Routing :: Can't Do Any Routing On Switch 3750

Apr 16, 2013

I have Layer_3 " 3750-x " , so I can't do any routing on the switch , so if I need to Upgrade the IOS what is the proffered image that support hte routing , and Is it free or should I pay?

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Cisco Switching/Routing :: High CPU Utilization In 3750 Switch

Oct 19, 2012

In Cisco 3750 facing high CPU utilization for specific period. During this period traffic response times across the switch degrades. Steps to identify interface potentially generating traffic. I have attached 'sh proc cpu history' , ' sh ip traffic', 'sh proc cpu sorted'  during troubled period .

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Cisco Switching/Routing :: 3750-X Switch Freezes After IOS Update?

Mar 27, 2013

I have a 2 member 3750-x switch stack that was upgraded to 15.2 today via CNA. All the files were transfered and expanded correctly and it got to the step where the switches needed to be reloaded but on reload they froze.
 
I connected a console cable and power cycled the stack. I see the flash initialize and then the IOS image start to load. Lots of @ symbols and then nothing. It just sits there. The system light on the switches, while flashing green during the load, is now off. No light at all. But fans are running and the process will repeat itself if power cycled.

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