Cisco Switching/Routing :: 3750X - 10G Twisted Pair Module
Aug 19, 2012The 10G twisted-pair module for the Catalyst 3750-X is the two-port C3KX-NM-10GT. can these be used as access ports for a server with 10 G NICs?
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Cisco Switching/Routing :: Extending LAN Using 888-k9 Over One Twisted Pair
May 3, 2012I already know that there is an option using Patton Copper Link Ethernet extender to interconnect a remote LAN with this device. Do you know if this is possible using Cisco 888-K9 or any other Cisco Device ?
View 2 Replies View RelatedLAN Over Copper Twisted Pair Cable
Jan 14, 2013Is it possible to run a large LAN over copper twisted pair cables?This is to connect 41 PC's that monitor fire systems on a large hospital site.I am trying to use the existing cable that is wired in a loop all round the site.
View 2 Replies View RelatedHome Network :: What Is A Twisted Pair Transceiver
Nov 5, 2011I purchased a couple of used Cisco Routers and Switches and the guy gave me a bag with some cabling and one of these little guys were inside:
I have seen them plugged in before on images of peoples labs, but what are they used for? Why would I want to use this?
Cisco Switching/Routing :: Catalyst 3750X - Network Module 1/10G
Apr 9, 2013Is 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
View 7 Replies View RelatedCisco Switching/Routing :: Pair Of N7K Distribution Switches Connected To A Pair Of Aggregation Switches
Mar 11, 2012We have a pair of N7K distribution switches connected to a pair of N7K Aggregation switches.We run vPC on both pairs of n7k's.
-n7k-d1 has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC1)
-n7k-d2 also has two interfaces in a Port-Channel connecting to n7k-a1 & n7k-a2. (PC2)
My problem is that Spanning-Tree is blocking PC2 and all traffic from n7k-d2 is traversing the Peer-Link before reaching the Aggregation layer. Is this the best design for connecting two pairs of n7k's with vPC or if a better design would be to connect all 4 links into the same Port-Channel and vPC?
Cisco Switching/Routing :: Nexus 5k - Can Connect VPC-Pair To Another One
Aug 31, 2009We are running 4x n5k and started with the vPC feature. So my question is, if i can connect a vpc-pair to another vpc-pair?In the cisco docs i can find examples for connecting a vpc-pair to a single switch, or server (with and without fex)But there is nothing about how to connect 4 n5k via vPC feature.
View 10 Replies View RelatedCisco Switching/Routing :: Two Subnets Through Pair Of SG200-08 Switches
Mar 21, 2012I have two separate companys both with staff at two locations and thier own networks connected with a wireless antenna which provides a high speed LAN connection between offices. I only have a single path through this antenna bridge. I have an SG200-08 switch at each end. What I am attempting to do is utlise the switches to take the two subnets at one office, combine them to one for transfer through the antenna bridge, and then resolve them into the two separate networks again at the other end.
View 1 Replies View RelatedCisco Switching/Routing :: ERSPAN On Nexus 5596 HSRP Pair
Jul 6, 2012We have HSRP between NexusA and NexusB with access layer switches connecting to the core using VPC, We are trying to setup a VAM server Voice recording for Siemens phones. We need to span all voice vlan and point it to the VAM server the VAM server connects to a 3750 Stack considering the amount of traffic multiple span session can generate I plan to move the server to the Nexus directly and run a Local Span Session.
1- As we have two Nexus running HSRP and VAM server only connects physically to one NexusA (I can run local span on that nexusA) the Second NexusB is not directly connected to the VAM server I plan to run ERSPAN so if this is the best design and which path will the span traffic take from Nexus B to NexusA will it go through the access layer switches depending on the vlans allowed on the uplinks or will it go through the 20 Gig uplink between the two Nexus allowing all vlans (VPN peer links) ? WE have approximately 10 voice vlans, Do we an example config for ERSPAN session where the source are vlans (As I am for fimilliar with RSPAN) ?
Cisco Switching/Routing :: VPC Pair Of Nexus 7K And Servers Connected Directly
Jan 9, 2012My Data Center has one single core switch where is connected several servers, one port is the link to the router wan and other port is the link to the FW, my boss wants to install 2 nexus in order to replace the single switch. All my network has only one address, for example 192.168.10.0/24 if I connect two nexus 7010 in VPC and Domain, each nexus is going to has 2 modules with 48 port 10/100/1000 rj45 and i wan to connect servers directly to each nexus, with this figure i'm going to have a group of servers connected in two different nexus, Do they can have the same network 192.168.10.0/24 considering that the nexus are in the same vdc and vlan and have only one gateway for both groups? If the answer is positive, which nexus would be the gate way for that address, the primary or secondary? Or i must have a different address for both group of servers, i mean for example 192.168.10.0/24 and 192.168.12.0/24?thus each nexus would be the gateway for that new address?
To have two nexus connected by VPC in a Domain mean that one computer connected to one nexus can share the same address or vlan with other computer connected to the other nexus????
Cisco Switching/Routing :: Configuring Nexus 5548 Pair For VLAN?
Mar 18, 2012I currently have two Nexus 5548UP switches in my environment running the latest code (n5000-uk9.5.1.3.N1.1a.bin). Both of these switches are connected via a VPC Peer Link (two ports on each switch in an Ether Channel) and a VPC-Keep Alive Link (a dedicated port). Hosts connect to each switch via a VPC for both IPV4 and FCOE.
As of right now, everything works. I currently have a stack of two 3750 switches that each Nexus is connected to. This stack is doing all the Intra-VLAN Layer 3 Routing for the Nexus Switches. However, I plan to get rid of the 3750s, and move the Layer 3 Routing the Nexus 5548's, so the backplane is 10 Gig instead of 1 Gig.. I have the Layer 3 Daughter Card installed in both switches, as well as the LAN_BASE license.
So, at the moment, I am trying to find the best way to accomplish Layer 3 Routing on these two switches. Since the Nexus switches are not stacked, and the FCOE portion of HA is taking care of by the Multipathing agent on each host, I believe am just concerned with providing Intra-VLAN routing in an HA build where if one switch goes down, VLANs still route through the other switch.
Again, since the Nexus switches are not stacked, I am guessing the best way to handle this is with HSRP, but my experience with that has always been with routers that have a switch in the middle. Can I make HSRP work without having a switch between the Nexus switches? Can I track the VPC peer link, or how do I do it? I guess I am looking for a sample config.
Let's pretend I had two VLANs:
VLAN 20:
10.20.20.254 - GW and 10.20.20.0/24
VLAN 40
10.40.40.254 - GW and 10.40.40.0/24
And I wanted the Nexus switches to route these VLANs regardless of which switch was up / down..
Cisco WAN :: Network Module For 3750X Switch?
Jun 5, 2012Does the Network Module "C3KX-NM-1G" and "C3KX-NM-10G" for Cisco Catalyst Switch 3750X Comes with a transciever like GLC-SX-MM or SFP-10G-SR or do I need to order in seperately.
View 1 Replies View RelatedCisco Switching/Routing :: 4900M / 2960 - Two L3 Switches As Redundant / Mated Pair?
Nov 6, 2012There are two Cisco 4900M L3 switches and two Cisco 2960 L2 switches. I need to configure the two L3 switches to operate as a redundant pair, as the servers connecting to them are connecting using bonded interfaces, which can only have one default gateway. So these two L3 switches need to have the same Vlan interface 1, 2 and 3 IP's set onto them.How are the two L3 switches made aware of each other? via a normal trunk? Is there some special configration for configuring a mated/redundant pair of switches? or are they both just configured as though they were the same switch, but linked?
View 14 Replies View RelatedCisco Switching/Routing :: 6504 VSS Pair Shows Active / Standby On Led But Not In Config
Oct 30, 2012After rebooting a pair of 6504's configured for vss, both switches show active on the sup modules. A show switch virtual redundancy however shows the pair working in an active/standby mode. We have 6509's in vss pairs and they show active on switch1 and standby on switch2 led's. For the 6504's switch 1 was booted first and then the second switch about 30 seconds later. Is there something different with the 6504's? [code]
View 4 Replies View RelatedCisco Switching/Routing :: Connecting 5548 Pair To 2 6509 Core Switches / No Vss
Jun 8, 2012connecting a 5548 pair to our core 6509s. Just want to be sure we don't introduce any issues into the network.The 6509's are connected and perform all the routing. Essentially, we're moving away from a 3750 stack in the data center and the 5548s are the replacement. We'd want to limit the vlans to the specific server network vlans. Our current setup is a port channel between the 3750 and each of the 2 6509s for redundancy. I'd like to use the same functionality when we connect the 5548's but I'm looking for what the config should look like to ensure no spanning tree loops are introduced and that it is configured optimally.
View 1 Replies View RelatedCisco Switching/Routing :: 2960s - Swapping Connection On Both Ends To Spare Pair Of Fibers
Sep 30, 2012The school I work at upgraded to Cisco Catalyst 2960-S switches, all connected to each other via fiber. I am seeing a problem with one such connection. Cisco Network Assistant showed a "4-Warning" regarding the fiber link port: port was disabled because it was fluctuating between up and down too rapidly. Possible hardware problem, resolve and re-enable. (I'm paraphasing the message...it was 'acknowledged', and I can't bring it back up.)
This message was only showing on our "SV-Copy-Rm" switch's port 49. The other end, on "SV-Maint-Rm" port 49 showed a normal green link status.
Using Internet Explorer, I logged onto SV-Copy-Rm switch's Device Manager, and I first tried disabling/re-enabling port 49 on SV-Copy-Rm. It came back up blinking yellow and showing "port has bad link" when I cursor hovered over port 49. This continued for a few minutes, followed by port 49 being disabled again.
The current thing I'm trying is swapping the connection on both ends to a spare pair of fibers. I'm pretty certain I've swapped to the same pair on both ends, however, now neither switch shows an active link. I've disabled/enabled the ports on both ends, but still no link.
Question: How do I re-establish the above link? (The active connection has 'fallen back' to the designated ethernet Cat 5e connection and is currently running with that connection.)
Cisco Switching/Routing :: Access Layer Switching With 2960 / 3560x / 3750x And 4506
Jan 17, 2013My 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.
Cisco Switching/Routing :: 3560x Or 3750x For Core Switching?
Mar 6, 2013i 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.
View 2 Replies View RelatedCisco Switching/Routing :: 3750X Static Routing When Running LAN Base?
Dec 27, 2012I have a stack of 2 x 3750X switches these are running 12.2(55)SE5. I needed to add some static IP routes and found that the ‘ip routing’ command is not supported. I came across a document that stated “On switches running the LAN base feature, static routing on VLANs is supported only with Cisco IOS Release 12.2(58)SE and later.” So I have upgraded to 12.2(58)SE2, but ‘ip routing’ is still not a valid command.
The release notes state:“On the Cisco Catalyst 3560-X and 3750-X Series, it adds support for 16 static IPv4 routes in the LAN Base image.”
I have read other posts that talk about running the ‘sdm prefer routing’ command which I have done, but I am still unable to add any routes or run the ‘ip routing’ command.
Cisco Switching/Routing :: Moving Routing From Perimeter Router To 3750x?
Dec 9, 2012I have an 1811 with several subnets connected to it.I recently installed a 3750x plant and want to bring my interior routing back to it.
All the routing is handled by the 1811 via secondary interfaces on vlan1?
I have 192 ports, and subnets show up on almost all of them. None of the ports are assigned to any specific vlans. Most ports have several subnets on them.
What is the best approach to getting the 3750x to handle the routing?
Cisco Switching/Routing :: InterVLAN Routing On Switch 3750X?
May 22, 2013my company pay a switch 3750 X. WS-C3750X-24T-E. It uses IP services basically but I failed to configure InterVLAN routing. why interVLAN routing doesn't work on my switch?
View 10 Replies View RelatedCisco Switching/Routing :: Routing Between Vlans On 3750x
Jan 24, 2013I am setting up a vm environment for a customer in my lab off site. I have two stacked 3750-x switches, a san, and threes UCS c220 M3S servers for hosts. I am trying to separate the lan traffic, san iscsi traffic, and san management traffic using vlans. The problem is i'm unable to communicate cross vlan with my current config, which I have attached to this post. The only noteworthy things in my conifg is that the ip route 0.0.0.0 0.0.0.0 192.168.83.6 is referring to a switch stack they have on site, that I will connect this stack to using the first two trunk ports on each switch, that I do not have here in the lab. I don't want to cause any confusion in why I have things set a certain way.
View 1 Replies View RelatedCisco Switching/Routing :: 3750x 12s Says That It Is Not Supported In CNA
Mar 28, 2012Why does my 3750x-12s switch say it's not supported in CNA??? I upgraded to CNA 5.7.1 and still says unsupported. This device is supported or I'm just missing something.I use CNA heavily to manage our MANY vlans.
View 1 Replies View RelatedCisco Switching/Routing :: 3750X Cannot Create A Vrf
Mar 4, 2013I want to confirm this is a licensing issue. On a 3750X with ipbase, I cannot create a vrf. So I would need the universal image, and that is a seperate license, correct?Is there a link that describes the difference bewteen ipbase and univeral images?
View 6 Replies View RelatedCisco Switching/Routing :: 3750X Did Not Have NAT Feature
May 22, 2013I have a query regarding attached Network Design
PC---2960---3750(One Routed Port and All Switched Port)------------------------ 3750(One Routed Port and All Switched Port)-----2960------Internet
I have many Vlans on left side of image , Right Side of Image is having internet connection via Modem, and local connectivity between VLAN works fine but Other Vlans Except Vlan1 is able to Access Internet.Note that 3750X did not have NAT Feature ,How should I able to get Internet on Other Vlans (10,20)
Cisco Switching/Routing :: How To Know Whether QoS Work On 3750X Or Not
Jan 5, 2013scenario A
A site .
PBX --->
Data ---> other brand router ----> 3750X ---> wan
[Code]....
How to know whether QoS work on the 3750X or not ? Is it correct about the config in scenario A ?
Cisco Switching/Routing :: 3750x - High CPU Log
Feb 3, 2013I have a one question. I am using Cat3750x-48 switch. Suddenly it has occurred following high CPU log message in Cat3750x-48 switch.
%SYS-1-CPURISINGTHRESHOLD: Threshold: Total CPU Utilization(Total/Intr): 62%/0%, Top 3 processes(Pid/Util): 162/40%, 156/10%, 74/1%
What is meaning of PID 162 ?
Cisco Switching/Routing :: Stacking With 3750X?
Jan 1, 2013There seems to be a lot of conflicting information on what can and can't stack together in the 3750X range.
I know that LAN Base can only stack with other LAN Base switches.
Can IP Base stack with IP services in 3750X? I have also heard that the 15.x.x IOS restricts mixed feature set stacks?
I know that Cisco recommends that all switches in a stack have the same IOS and feature set but having all IP Services in a stack can get too expensive.
Cisco Switching/Routing :: QoS On 3750X Stack
May 7, 2013I'm trying to review a QoS setup, and I'd like to make sure I fully understand the current setup before I change anything. I'm seeing output drops on two different queue-thresholds, but not sure how packets are making it to one of the queues.
Switch Version
CORE#show ver
Cisco IOS Software, C3750E Software (C3750E-UNIVERSALK9-M), Version 15.0(2)SE, RELEASE SOFTWARE (fc1)
System image file is "flash:/c3750e-universalk9-mz.150-2.SE/c3750e-universalk9-mz.150-2.SE.bin"
cisco WS-C3750X-24 (PowerPC405) processor (revision A0) with 262144K bytes of memory.
Switch Ports Model SW Version(code)
I can find queue4-threshold3 in the mappings, but how are packets getting mapped to queue2-threshold1? The priority queue is disabled for this interface, so I'm not sure how this queue is dropping packets, according to the maps nothing is mapped to 02-01.
Cisco Switching/Routing :: 3750X Power Needs For PoE
Mar 21, 2013I am building a switch stack using 4 48 port 3750X switches that will also have the power stacked. If I install a single 715W power supply in each switch will the stack support 802.3af accross all 48 ports on each switch? My calculations are 48 ports x 15.4W which gives me almost 740W needed which is over hte 715W power supply. I was reading somewhere were it mentioned that in a powerstack additional power can be drawn from the stack. I know this will not work if you are trying to support power on all switches accross all ports but would it if say 2 of the 4 switches are needing to provide PoE accross all 48 ports? If I say we can only use 24 ports per switch for PoE that drops the power need down to 370W which I believe should work. Just trying to get a better understanding of PoE consumption. Would the best solution be to just add a second power supply to each switch?
View 8 Replies View RelatedCisco Switching/Routing :: 3750x Rebooting Itself Randomly?
Nov 24, 2012I have a switch which is rebooting it self, we bought it a year back,its a new switch, i did not find any error on sh ver after rebooting. I am using OP manager, i did not receive any alerts. I have done all diagnostic test, all are passed, i did not find any problem..
View 2 Replies View RelatedCisco Switching/Routing :: Cant Create VRFs On A 3750X?
Mar 1, 2013I am having an odd issue on a couple of new 3750X switches.I am trying to configure VRF-lite and it is not recoginizing the command.Does that make any sense? I have goggled the syntax ans it should be right.
View 12 Replies View RelatedCisco Switching/Routing :: L2 Vs L3 Between 1002 And 3750X Core?
Feb 4, 2013we are replacing network equipment at one of our sites. The network will have 12, 3750X switches(6 stacks) - one stack will be the core. A 1002 will be the WAN router to the Main campus. The 1002 will connect to the core via 2 ethernet cables. I'm debating whether to use L3 or L2 between the router and Core. I've heard that routing is more efficient if L3 is used and also I will be able to create an L3 etherchannel between the 1002 and Core switch. See the attached doc.
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