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 :: 3750 - Can Take (4) Ports From Each Switch In Stack And LACP Together

Jun 5, 2012

I have a Cisco 3750G-48PS Running IOS 12.2(40) and was wondering how many physical ports are supported in an LACP Configuration.  Is it 4 or 8 ports in a single switch.
 
If I have a dual 3750 stacked together,  and I want to configure (8) port LACP, Can I take (4) ports from each switch in the stack and LACP together.

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Cisco Switching/Routing :: 3750 Method Of Forcing Non Connected Switch Port LED To Blink

Jan 9, 2012

Any method of forcing a non connected switch port LED to blink for a certain number of times regardless if there is anything connected.The purpose of this is we have remote 3750 switch stacks and quite often have to tell non technical staff to patch to a certain port. It would be much easier if we could say "Connect it to the empty port which just started blinking orange" as the port numbers are difficult for them to see in these locations.A similar feature is available in the ethtool package for linux which makes it really easy for identifying ports on servers. It would be great if a similar feature is available on Cisco switches.

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Cisco Switching/Routing :: Configure 2960 8 Port Switch With DHCP Server?

Jun 24, 2012

I need to configure a Cisco 2960 switch as a DHCP server.    The current IP address will be on a different seed than the DHCP addresses.  i.e.
 
Switch IP = 10.1.2.3, GW = 10.1.2.1, Subnet = 255.255.255.0
DHCP addresses would be 192.168.1.1 - 200, GW=???? (10.1.2.3?) and subnet would be 255.255.255.0

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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 :: LACP - SGE2000P To Catalyst 3750

Apr 24, 2012

Is it possible to configure LACP etherchannel to a Catalyst 3750?  Playing around with the SMB switches for the first time. 
 
I know how to do it on the 3750 but am having trouble figuring out the sge2000p. 

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Cisco Switching/Routing :: (lacp Rate Fast) In Catalyst 3750?

Dec 24, 2012

I am running the latest version of 12.2(55)SE6 on the catalyst and I am looking for this command "lacp rate fast" but it is not there:
  
lab-c3750#conf t
Enter configuration commands, one per line.  End with CNTL/Z.
lab-c3750(config)#interface g1/0/5
lab-c3750(config-if)#lacp ?
  port-priority  LACP priority on this interface
 lab-c3750(config-if)#lacp
 
According to this link, it is supposed to work: [URL]Am I missing something?

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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 :: 3750 Switch Connected Computers Hang For Few Minutes

May 6, 2013

In my customer having 3750 switch and they have simply assign IP address for vlan and enable telnet in switch and other things are same as default switch.In this switch they have connected 8 cisco layer 2 switches(6 managed and 2 unmanged switch) and approximately 5 servers connected in this switch.In a particular interval,users accessing File server are connected to 3750 switch become hanged for few min.This happen for some particular interval.users accessing this server becomes entirely hanged for few min,then i have configured port monitor cmd and i have installed one wildshark tool to host connected directly to that switch.

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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 :: 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 :: 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 :: 3750 - Port VLAN Setting Reverts Whenever Host Connected

Apr 17, 2013

One of the ports on the 3750 stack was configured for VLAN121. It was changed to VLAN40 and the configuration saved. Both VLANs exist in the switch configuration. As soon as a host was connected (in this case, a label printer) the port VLAN reverted back to VLAN121.

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Cisco Switching/Routing :: 3750 No MAC Address On Switch Port

Apr 15, 2012

There 's a Cisco IP phone that sits between a PC and the switch port. On the switch port, no MAC address is learned. However, the switch is able to detect the IP phone and deliver power to it: [code] Switch is Catalyst 3750 with IOS version  12.2(58)SE1.

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Cisco Switching/Routing :: 3750 Switch Stack-port Changes

Feb 7, 2011

I have a stack with a lot of stack-port changes, but on all the ports, how can I determine the faulty switch in the stack, cables are already verified. We did also a restart of the whole stack power off/on
 
running version
 
WS-C3750-48P       12.2(55)SE            C3750-IPBASEK9-M
 
This is the output after 6weeks
 
Switch#/  Stack   Neighbor   Cable    Link   Link   Sync      #         In  Port#     Port              Length    OK   Active   OK    Changes   Loopback          Status                                          To LinkOK          --------  ------  --------  --------  ----  ------  ----  ---------  --------  1/1     OK         4      1

[Code].....

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Cisco Switching/Routing :: 2960 Which Port On Switch Its Connected

Mar 2, 2012

If I knew the IP address of a host, can we know on which port on the switch its connected. The switch model is 2960

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Cisco Switching/Routing :: Config Port Forwarding In 3750 Switch

Nov 6, 2012

I have a 3750 catlyst switch in my network and it is like a distubation switch,And for the nating and dhcp nomadix is using as gateway in the same network. for one of my local PC i need to config the port forwarding in 3750 switch. How to config the port forwarding on 3750 switch,

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Cisco Switching/Routing :: 3750 - Setup A Switch Port For 2 Vlans

Nov 8, 2011

I'm trying to setup a port on a catalyst 3750 so it will pass traffic for 2 vlans. It connects to a (watchguard) firewall which I've configured with a primary IP (for vlan 27) and a secondary IP (for vlan 29).
 
However I can't seem to find the correct commands to enter on the cisco switch port (I've tried a variety).
 
FYI the current configuration is...
interface FastEthernet1/0/38
description ## Connection to WG vlan27 and vlan 29 ##
switchport trunk encapsulation dot1q

[Code].....

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Cisco Switching/Routing :: QoS 3750 Switch Port Trust Without Resetting

Oct 7, 2012

We have QoS configured throughout the company, but the standard config we have applied across the 3750 switches only includes the below: We have IP phones (not cisco) attached that are marking with EF, and the PC is an untrusted end device (so needs to be by default marked as zero).Is the above enough to trust VOIP DSCP EF without resetting it to DSCP 0, or do I also need to add a trust line (i.e.: mls qos trust dscp)?

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Cisco Switching/Routing :: How Many Port Channel Can Configured In Switch 3750 X

Apr 23, 2012

I would like to know how many port channel can i configured in the switch 3750 X ? and if there is a limitation by IOS ?

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Cisco Switching/Routing :: 3750 DHCP Server Handing Out IP Addresses To Client Connected To VLAN5 Interface

Feb 23, 2012

Haveing issue with DHCP server handing out IP addresses to client connected to VLAN5 interface.ISP Router>Firewall -(WatchGuard Drop-in mode) I have several 3750 switches and  one acting as a L3 switch. The L3 is configured as follow: [code]
 
If I connect a laptop to int fa1/0/10 I DO NOT get an IP address from the 10.100.0.8 scope. If I connect to another interface within the VLAN 1, I get an address from the 10.100.0.0 range.

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Cisco Switching/Routing :: Nexus 5548 VPC To Dual NIC Server With LACP

Apr 1, 2012

We are planning to have attach topology with nexus 5548 using vpc. Let me know if this i possible. I want to configure dual NIC linux server using LACP active mode to connect to two 5548 in VPC for redudancy as well as use of full access layer bandwidth. On nexus this will be access port in single port channel in single VPC link.

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Cisco Switching/Routing :: 3750 Populate All Switch Port With 100 Filter List

Oct 27, 2011

If i fully populate all switch port (Cisco 3750 series) with 100 filter list on each port is it recommendable.

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Cisco Switching/Routing :: Not Able To Ping Link Between 12-port 3750 Switch And ASR-9010

Apr 3, 2012

I have one 12-port 3750 switch having one gig connectivity with ASR-9010 router having IOS-XR. I am not able to ping this link with 9000 mtu size. I have enable system mtu jumbo on switch to 9000 and on ASR router interface mtu is set to 9114. At switch side switch interface is configured as a trunk port and one vlan has been passed on that interface. I am not able to ping the ip 172.16.10.2 with 9000 mtu size.

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Cisco Switching/Routing :: Configure New Server With Nexus 5548 Switch

Jul 15, 2012

My Name is senthil i need to configure new hp sever with Nexus 5548 how to config.. server side everything finished just i need only
 
Config tips for Nexus 5k for New server

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Cisco Switching/Routing :: Difference Between Using Hsrp On Vlan And Physical Port On 3750 Switch

Nov 14, 2012

What the different between using hsrp on vlan interface and on physical port (routed port) on Cisco 3750 Switch? Wha the benefits?

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Cisco Switching/Routing :: 3750 - Change Port Numbering So Master Switch Gets GigabitEthernet1/0/x

Jul 18, 2012

I have 2 x 3750 stacked, the port number of the master switch is gigabitEthernet2/0/1, slave as gigabigEtherent1/0/1.
 
Can I change the port numbering so that the master switch gets GigabitEthernet1/0/x?

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Cisco Switching/Routing :: LACP Support On Nexus 2000 With 7000 As Parent Switch

Jun 13, 2011

Does the LACP will be supported on Nexus 2000 host interfaces when parent switch is Nexus 7000?

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Cisco Switching/Routing :: Stack Mac Persistent Timer Lacp Port Channels C3750

Sep 27, 2012

I am having an issue on a Cisco 3750 stack where when the stack master is rebooted, all my lacp port-channels drop and then come back up again. After doing some investigation It seems that it is happening because of lacp using the stack master mac-address as part of the system-id, so when the stack master reboots, the stack mac changes. I see that there is the command: stack-mac persistent timer 0

There is this warning about using this command:
 
When you configure this feature, a warning message displays the consequences of your configuration. You should use this feature cautiously. Using the old master MAC address elsewhere in the domain could result in lost traffic.
 
My question are:
 
Are there any other consequences to using this command (apart from moving the switch/mac to another location in the network)It mentions 'If the entire switch stack reloads, it acquires the MAC address of the master as the stack MAC address' Is this still the case if you have the stack-mac persistent timer to 0? Does using channel-group mode on for the port-channels still use the same mechanism of having a system-id? (Will the channels flap using 'mode on' when rebooting the stack master.

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Cisco Switching/Routing :: Configure Access Ports Into Port Channel On Nexus 7K Switch?

Feb 14, 2013

Can i configure access ports into port channel on Nexus 7K switch.If possible then provide the complete configuration.....

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Cisco Switching/Routing :: 6500 Ping Packet Drop From Core-Switch To Directly Connected Server

Oct 24, 2011

I have an Cisco 6500 CS and there is a Cisco Unified Communication Manger Server connected directly to the Core Switch.I tried to change duplex and speed ( fix and auto ) for both sides, but the same problem.

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Cisco Switching / Routing :: WC2948G - Configure LACP Trunk And Multiple Trunk

Feb 12, 2012

we recently aquired a managed services job and have to do a overhaul of the vlan configs and have a whole dozen WC2948G's trunk between a set of ports as well as trunk out a LAG channel setup to non cisco equipment. the deal is the lacp-channel works properly on both ends but no routing of vlans between ports and between the lag trunk are working.
 
theres alot of settings in the config and im planning on clearing it and starting from scratch but before i do i want to know where my problem lies.

[code]...
 

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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?

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Cisco Switches :: Configure SF300 48 Port Switch As DHCP Server?

Aug 23, 2011

How to configure SF300 48port switch as DHCP Server or not.
 
My Configuration as below
 
I have 8 vlan configure in SF300  (SVI with ip address)isit possible to configure dhcp server and how i can apply access-list to restrict with other vlans.

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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 :: Two 3750 L3 Switches Connected Via Trunk

Jan 29, 2012

I have client who has two distant offices with 3750 L3 as core (do all vlan routing for local office) and multiple L2 access switches with multiple VLAN’s connected to it. First 3750 is hub also connected to internet, second 3750 is spoke and acting as a router on stick. We have eigrp configured on both side ISP provided client 100Mbps link as a trunk with two vlan; vlan10 for voice and vlan20 for data. We assigned two small subnets to these vlans 10.15.17.0/29 and 10.15.17.9/29. Hub addresses are 10.15.17.1 and 10.15.17.9 respectively. How to force voice over VLAN10 and data via vlan20, but still do some load balancing? How to setup default route on second (router on stick) switch?

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Cisco Switching/Routing :: 2 PE Routers Connected To Each Other Via 2960S And 3750 Switches

Mar 5, 2013

I have 2 PE routers connected to each other via 2960S and 3750 (non-metro) switches:

[PE1] -- [2960S] -- [3750] -- [2960S] -- [PE2]

I will be sending voice and data traffic between the two and my voice traffic will be marked DSCP EF & EXP 5.

Since the 2960's and 3750's can't match on the EXP bits, I am wondering if the "mls qos trust dscp" command still works. Is the 2960/3750 able to match on DSCP even though there's an MPLS header on top of the IP packet?

I'd like to avoid having to tag my VLAN traffic on the PE and rely on COS to achieve QoS in this case.

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Cisco Switching/Routing :: 3750 Receiving CDP Packets From Switches Not Directly Connected

Jun 27, 2010

A specific switch port which happens to be part of a 2 switch 3750 Switch Stack is seeing multiple CDP packets from 3 extra switch port interfaces that are not directly connected. Noteworthy is that the far end devices have the correct CDP entries and I physically confirmed at least two of those connections that lead to the switch "upstream to the culprit switch". Tricky part is that its production so room for maneuvering is limited. At some point I disabled all Ports save for the real uplink and the problem momentarily disappeared. Re-enable the interfaces problem resurfaces. Is there an explanation, technique to eliminate the culprit with minimal disruption?

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Cisco Switching/Routing :: 3750 - Two Switches Connected With Single Mode Cable

Jun 4, 2012

I am troubleshooting a fiber connectivity issue.Now I have two switches, one is 3750, and another is small biz 300 series switch. Both switch has a single mode smf gbic. Now I have two swtiches face to face and connect with a single mode cable. Do you think if I would get a link light on? Both ports are no shutdown.

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