Cisco Switching/Routing :: IP SLA ICMP Echo Support Catalyst 3560X / 3750X?

Feb 13, 2012

Need to clarify if ip sla icmp echo operation is supported in catalyst 3kx switches (ip services)? on the configuration guide, commands are available, but on the feature navigator, i can't find the feature, only ip sla video operation. i don't have a device to test on here.

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Cisco Switching/Routing :: 3560X Or 3750X Support GRE?

May 23, 2013

If the 3560 or 3750 "X" series support GRE.I am pretty certain the older 3750-E does not support GRE (both in hardware and software)Was hoping the new super duper X series do. If not, it could get expensive

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Cisco Switching/Routing :: Nexus 5500 Duplicate ICMP Echo-replay

Nov 24, 2012

I am experiencing inconsistent echo-replay from devices connected via VPC to Nexus 5500s while pinging from the Nexus exec prompt.

In some cases I receive normal response when pinging from one Nexus,  but no response when pinging from the other switch. In other instance I receive normal response to one Nexus, and duplicate replays to the other. It looks like a VPC related bug. NXOS is 5.1.3.N2.1
 
5501# ping 10.12.12.232
PING 10.12.12.232 (10.12.12.232): 56 data bytes
64 bytes from 10.12.12.232: icmp_seq=0 ttl=253 time=8.585 ms
64 bytes from 10.12.12.232: icmp_seq=0 ttl=254 time=9.227 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=1 ttl=253 time=1.011 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=253 time=8.097 ms
64 bytes from 10.12.12.232: icmp_seq=2 ttl=254 time=9.429 ms (DUP!)
64 bytes from 10.12.12.232: icmp_seq=3 ttl=253 time=18.195 ms
64 bytes from 10.12.12.232: icmp_seq=4 ttl=253 time=8.807 ms(code)

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Cisco Switching/Routing :: Catalyst 3750X OSPF Support In IP Base Image?

Apr 3, 2011

I'm trying to work out if I need to order the "IP services" image for a couple of C3750-X.  I need to run OSPF on these switches, but find the IOS image requirements on Cisco contradict.
 
At the top of the data sheet it says: • Open Shortest Path First (OSPF) in IP Base image

On the product info page it says: IP Base: Enterprise Access Layer 3 Switching, including OSPF (Open Shortest Path First) for routed access 
 
But in lots of other places it says you need 'IP services' for OSPF.
  
As the IP services IOS is quite a bit more expensive I would like to avoid buying it. What image do I need to run OSPF?

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Cisco WAN :: Number Of MAC Entries Of Catalyst 3560X / 3750X Platform

Apr 10, 2012

Any info regarding the number of MAC Entries of Catalyst 3560X/3750X Platform?  I can find that number in 3560, 3750 ds but not in 3560x ds.

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Cisco Switching/Routing :: 3750X / 3560X - Power Cord For PDU?

Aug 28, 2011

Is the CAB-C15-CBN - Cabinet Jumper Power Cord, 250 VAC 13A, C14-C15 Connector, supported on the Cisco Catalyst 3750X/3560X. I need to plug the switches into a UPS PDU, that requires a C14 plug.

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Cisco Switching/Routing :: Access Layer Switching With 2960 / 3560x / 3750x And 4506

Jan 17, 2013

My management has tasked me to give them a high level overview of the different switching we can choose for our new building.
 
This is what I know so far.4 Closets, each closet has 450 ports,One MDF room that is will contain one UCS Chassis and a Nimble iSCSI SAN.
 
I am working on the spreadsheet and it looks like this (Not totally filled):

2960s3560x3750x45064510Approx cost (Each, 48PORT, POE+, 10G uplink, Dual PS, IP BASE)
6K7K8K45K75KMax Capacity192432432192384Backplane speed206464520520ProLeast ExpensiveStackable to 9Stackable to 9ProDual PSDual PSDual PSDual PSDual PSProLayer 3 opt
Layer 3 optDual SupsDual SupsConExpensiveExpensiveConNo Dual PSConLayer 2 OnlyCannot stack more than 4 
For the MDF I would like to use 2 Nexus 5548's with FEX's, and the layer 3 daughter board.  For the IDF's I was thinking of two 4010's.

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Cisco Switching/Routing :: 3560x Or 3750x For Core Switching?

Mar 6, 2013

i cant find any difference in these two devices when i am trying to compare throughput.I need upgrade our new POP and there will be around 4900 MAC adresses in VLAN 150 and 130 MAC adresses in vlan 200.Uplink is 1 gig routed internet connection and there is 14 downlinks to separate villages.i found a few differences for eg stack interface on 3750x but i dont need it.  

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Cisco Switching/Routing :: ICMP High Response Time To SVI Interface 3750X

Mar 13, 2011

I am in the process of installing a 3750x (IOS 12.2 (53r) SE2 IP Base) Cisco Catalyst switch in a new network of just 2 PC's (2 hosts, OS windows7 64Bits). I have enabled SVI interfaces with the both hosts installed in 2 different network segments.  We then start connectivity test.  The response time for the PING command between both hosts remain below 1 millisecond, whereas the response time between the hosts and their correspondent SVI interface is variable, and at all time is higher than 1 millisecond, sometimes it reaches 17 milliseconds. (Note that the switch CPU usage is only 8% at the time of testing)  We have performed this same connectivity test changing the 3750x switches  and in two different locations obtaining the same results. 

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Cisco Switching/Routing :: Catalyst 3560x GUI Interface?

Mar 17, 2013

if a connect to the switch via Internet Explorer or every other browser I can't enter configuration because I receive a screen as you can view in image below. And I can view those errors:
 
message: 're_preFlt_txt33' is not defined
Linea: 31
Carattere: 1
Codice: 0
URI:

[URL]
 
If I connect in HTTPS with IE8 in compatibility mode I view the image as in attachment with_https.jpg.

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Cisco Switching/Routing :: Why Last Port Of Two Catalyst 3560X Are Connected Together

May 22, 2012

We have two catalyst 3560X 24T-S switches connected on two separate LANs (both the networks are redundant to each other). The last port of the switches are connected together?

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Cisco Switching/Routing :: Upgrade Catalyst 2960S And 3560x

Jun 20, 2012

i want upgrade my catalyst 2960S and 3560x at midnight, but i am worried about config loss.  If i upgrade my switch throught web interface, will need I reconfigure the switch?

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Cisco Switching/Routing :: Catalyst 3560x SFP Fiber To Media Converter

Sep 21, 2012

I'm trying to upgrade some of the netwotk in my workplace.To do this I have istalled a 24port Catalyst 3560X switch.I'm looking to link it to my exsisting network via fibre.
 
I spoke to a local Cisco supplyer who recomended the above switch and an Allied Telesis Media converter.
 
I cannot seem to get the Allied Telesis unit to connect to the cisco switch.I have proved the fibre link by connecting 2 AT Media converters over the fibre.Do I have to enable something on the Catalyst switch or is the AT Media converter not compatible with the Catalyst switch?

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Cisco Switching/Routing :: 3560x VACL Capture Support

Aug 1, 2012

Is there a way to configure a VACL capture on 3560-x, we need more than 2 SPAN sessions. Feature navigator indicates that this feature is supported but it seems like it's not implemented in the IOS yet.

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Cisco Switching/Routing :: 3560X-24P-L Switch OSPF Support?

Mar 21, 2012

I acquired a 3560X-24P-L Switch which I wanted to use at our datacenter.  However, I need a switch that supports OSPF.  It came with a Universal IOS but there was no "Router" command under conf t.  I downloaded and applied the latest "IP Base" IOS, but still no Router OSPF.  Based on the matrix here > [URL] I thought "IP Base" supported OSPF, but what exactly is "OSPF for routed access" ?  Do I actually need an "IP Services" IOS?  From my download options, I do not see an IP Services IOS for the 3560X-24P-L so I'm left to assume that the switch does not support L3 / OSPF.  So my question is this particular switch supports L3 / OSPF and what is Universal IOS?

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Cisco WAN :: IP SLA ICMP-Echo On 3750?

Jan 22, 2012

Have a very peculiar issue with IP SLA. Firstly, the architecture.
 
1) There are two sites - A & B. Both have their own internet connection.

2) Sites A & B are connected via MPLS.

3) Both sites have the below topology.
 
3750 CORE --> FIREWALL -->ROUTER ---> INTERNET
 
4) 3750 has a Default route pointing to firewall .

5) MPLS router is connected to 3750. A default information is originated via BGP to MPLS at each location. So that default route is learnt as a backup path from any location if it has to lose its local internet.

6) IP SLA has been configured at each location to track the default route using icmp-echo to hit a public IP (i.e 4.2.2.2 as an example).
 
Issue?ICMP probes from Site-A via its local internet fails abruptly. I can reach the public IP mentioned above from my firewall pretty fine, but not from my 3750. Whenever i remove the tracking from the static default route & push in the plain default route without tracking, it works fine. Again, if i add the tracking back, it will work fine for an hour or so & then fails back again. To my bad, Site-B had recently gone offline due to some natural calamity. So, there is no other path for internet.
 
My config looks pretty simple
 
track 10 ip sla 1 reachability
!
ip sla 1
icmp-echo 4.2.2.2 source-ip 10.1.254.1
frequency 180
ip sla schedule 1 life forever start-time now
ip sla enable reaction-alerts
!
ip route 0.0.0.0 0.0.0.0 10.1.254.1 track 10
 
I am running IOS version 12.2(53)SE2 (IPservices images).

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Cisco Switching/Routing :: 3560X-24P-S Will Support LLDP / DHCP Relay

Feb 1, 2012

I would like to know cisco 3560X-24P-S will support LLDP & DHCP relay .If it support which IOS feature is required to enbale these features.

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Cisco Switching/Routing :: Catalyst 3750-x Icmp Delay To Default Gateway?

Sep 10, 2012

i am facing a problem when the client vlan is commmunicating with the default gateway on the core 3750-x.
 
ios in 3750-x core is  3750e-universalk9-mz.150-2.SE.bin.  But, client to client communication is happening without any dealy and icmp is less than 1 ms always.
 
When try to ping default gateway of client vlan, it is getting delayed (variable icmp delays). Is this an ios bug?

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Cisco Switching/Routing :: Key Functional Differences Between Catalyst Switches 3560E / 3560X And 3560G

Dec 1, 2011

I need to know the key functional differences between the Catalyst switches 3560E, 3560X and 3560G.

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Cisco Switching/Routing :: Catalyst 3560X-24T-S - Setup DHCP Servers On Layer 3 Switch?

Apr 1, 2012

Do you have the ability to setup DHCP servers on this layer 3 switch? I know I can with my old 3550 switch. Want to upgrade and make sure this model supports setting up dhcp servers on it.

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Cisco Firewall :: ASA 5510 / PAT / ICMP Echo Outgoing IP

Apr 16, 2013

I have ASA 5510 with soft version 8.4(5) installed. There are two interfaces:
 
IP 1.1.1.1/24 - inside
IP 2.2.2.1/24 - outside
 
I have configured PAT, so network 1.1.1.0/24 gets NATted to 2.2.2.2 address. Everything works fine, except I can't reach 2.2.2.2 via ICMP from the internet.
  
X.X.X.X 2.2.2.2 Deny inbound icmp src OUTSIDE:X.X.X.X dst OUTSIDE:2.2.2.2 (type 8, code 0)
 
But I have configured an access list allowing ICMP from any to any: access-list outside_access_in extended permit icmp any any
 
Thus address 2.2.2.1, which is binded to outside interface itself, is perfectly reachable via ICMP.
 
I've got two questions:

1) Is there a way to fix it? It will be handy for diagnostic purposes.

2) is it possible to configure the secondary IP address on the interface on ASA? I've read, that there are some complications.

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Cisco Firewall :: ASA 8.2(5)26 - ICMP Echo Request Denied On Outside?

Jan 14, 2013

I'm having problem getting ICMP echo monitoring on outside interface to work. I've set: icmp permit host monitoring_station_adress outside but I still get:

%ASA-3-313001: Denied ICMP type=8, code=0 from monitoring_station_adress on interface outside. I'm trying to directly monitor ip on ASAs interface outside.
 
I have access-group tied to "in" direction on interface outside. Do I still have to put "permit icmp" rules despite the fact that icmp permit outside command is set?

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Linksys Wireless Router :: Disable ICMP Echo On Ea4500?

Feb 7, 2013

How do I disable ICMP echo on ea4500 - I don't see anywhere either in Connect or directly on the router web interface that allows this.

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Cisco Firewall :: ASA 8.4(2) Doesn't Respond To ICMP Echo On Ip Address With Port

Dec 13, 2011

In order to meet our requirements we had to configure PAT for TCP 80 on 2 external IP addresses to one internal IP in DMZ. TCP port 80 is being translated for both external IP addresses and it works as expected. However, since we have migrated to ASA both external IP addresses don't respond to ICMP echo requests generating following error:
 
%ASA-3-106014: Deny inbound icmp src outside:<Source IP> dst outside:<Destination IP> (type 8, code 0)
 
Previously we have been using Cisco router to achieve the same objective and it worked well.I have noticed that when I add "same-security-traffic permit intra-interface" to a configuration the message mentioned above stops appearing in a logs.
 
As far as I can tell ASA sends packet back through outside interface, despite the fact that appliance advertises its mac address in response to arp request for the same external IP address.Is there any way to make ASA realise that it should respond to ICMP echo requests on external IP addresses that have forwarding setup?
 
I do realise that ICMP would work in 1-to-1 NAT scenario, but we can't apply 1-to-1 NAT for 2 external IP addresses to point to one internal IP address.

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Cisco Switching/Routing :: Catalyst 3750X Upgrade Failed?

Jan 27, 2013

I try to updgrade a stack of two 3750X-48PS to the IOS 15.0-2
 
Same commande has the twelves others stack I have upgrade lately
 
archive download-sw /overwrite tftp://x.x.x.x/c3750e-universalk9-tar.150-2.SE.tar
 
or
 
archive download-sw /overwrite usbflash0:/3750/c3750e-universalk9-tar.150-2.SE.tar (much faster!)
  
At the end I have this message :
 
extracting c3750e-universalk9-mz.150-2.SE/info (511 bytes)
extracting c3750e-universalk9-mz.150-2.SE/c3750e-universalk9-mz.150-2.SE.bin (19842267 bytes)

[Code].....

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Cisco Switching/Routing :: Cannot Upgrade Servicemodule In Catalyst 3750X

Mar 25, 2013

I have upgraded my Catalyst 3750X-switches to software-version 15.0(2)SE2, but I cannot upgrade the 10G servicemodule to the same version. I use the archive download-sw command to load the c3kx-sm10g-tar.150-2.SE2.tar. The file is loaded to the switch, but when the process starts to transfer the file to the module it fails with the following messages:
 
Error 2: Unable to transfer image to FRU Modul on switch 1Error: Failed to update FRU Module image 
 
The modules is now running with in-compatible versions as shown below:
 
Switch# H/W Status (CPU/FPGA) CPU Link Version
-----------------------------------------------------------------
1 OK 77C/71C ver-mismatch 03.00.41
2 OK 73C/73C ver-mismatch 03.00.41

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Cisco Switching/Routing :: Catalyst 3750 And 3750X Together In One Stack?

Nov 20, 2011

if I read the Datasheet of Catalyst 3750X-Series-Switches it is possible to connect a new X-Switch to an existing and old Catalyst 3750-Series Stack.What kind of requirements are needed? Only same IOS-Version in the hole Stack and if possible same Feature-Set? .... like in a normal NOT mixed Stack?

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Cisco Switching/Routing :: Catalyst 3750X - Network Module 1/10G

Apr 9, 2013

Is it possible to mix 1 and 10 Gigabit links on a 1/10Giga Network Module of the Cat3750X? I mean porte GE1/1/1 and GE1/1/2 used with SFP and port TE1/1/2 used with SFP+; that makes TE1/1/1 not available as GE1/1/3 and 1/1/4

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Cisco Switching/Routing :: Catalyst 3750X-48P Switch Ports Dead

Jan 31, 2012

I work at a hospital and we have 3750X-48P switches in stacks in various locations throughout the hospital.  We have noticed that when an EKG machine is plugged into one of the ports on some of these switches and the EKG machines are set manually to 100/Full, the ports are no longer usable until the switch is restarted.  The switch is configured for auto.  If the EKG machine is set to auto, it will work and not cause problems.  The link on the interface will show up/up and there will be output packets increasing.  However, there will be no inputs on the link and the port is unusable.  Unfortunately, even when the device is removed, the port becomes unusable for any device.  Is there any way to fix this problem without rebooting the switch?

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Cisco Switching/Routing :: Port Numbering On A Catalyst 3560 / 3750X

Apr 10, 2012

Assume I had Catalyst 3560X/3750X with 24 ports. The partnumber is WS-C3560X-24P-LI would like to how is the numbering defined if the switches have a C3KX-NM-10G installed with 4 SFP-GE-L.

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Cisco Switching/Routing :: Catalyst 3750X Is Caching Tacacs Password?

May 17, 2012

the following information before:
 
Switch:  WS-C3750X-48P   (Stack with 2 Members)
IOS:      12.2(58)SE2
Lic:       IPBASEK9
uptime:  rebooted this night
 
[code]....
 
Since i added another Member to the Stack, i'm facing the following problem:When i login with my tacacs user account, i will not be asked for the password.The same thing is for the tacacs account of my colleague, after entering the username he is logged in.It seems for me, that the passwords are cached only for this Switch.

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Cisco Switching/Routing :: Catalyst 3750x 24 PS POE With C3KX-NM-10G Uplink Modules?

Sep 5, 2012

our network is spread over  15 floors and each floor we have 5-6 switches. we are planning to purchase cat3750-x 24 ps poe with C3KX-NM-10G  network modules. Each floor has two up links  to the core  switch  with  single mode fiber and other being the multimode.Suppose if we are purchasing 75 switches  do we have to  purchase 75 C3KX-NM-10 G  modules.? or  can we limit our purchase with 15 C3KX-NM-10G   sothat two uplinks from each floor can be made?  since network modules are optional cost factor is invovled. Or any issue with stacking ? the SFPs will be LR  and LRM MODULES.looking for an answer ? whether the new usb type console cable comes bundled with  cat350x or shall we have to order separately?

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Cisco Switching/Routing :: Catalyst 3750X Stacking Convergence Time?

Nov 14, 2011

convergence time in case of stack master will be switched over to other switch.In my understating, when the stack master will be switched over to other switch based on election algorithm, convergence time will be less than 10 second.
 
I tried to calculate concersion time during fail over testing but convergence time was 21 second. I think it is too long...

Expected reasons

・I configured Rapid Spanning tree protocol between L3 and L3. (But RSTP's convergence time is 2~3 second..)

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