Cisco Switching/Routing :: What S The Fabric Speed (backplane Speed) Of A Nexus 2232 10G EX
Jan 12, 2013What s the fabric speed (backplane speed) of a Nexus 2232 10G EX?What is the forwarding rate (Mpps) of the same 2232 FEX?
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Cisco Switching/Routing :: Nexus 2232 Feature - Connect To Switch Like HP Flex Fabric
Aug 22, 2012As per my understanding, Cisco Nexus 2232 can only connect to HP c7000 Chassis if we are using a Pass Through Switch in the HP c7000. Cisco Nexus 2232 can only connect to End Hosts and not to a switch. Is there a New Feature added in Nexus 2232, which enables it to connect to a Switch like HP Flex Fabric ?
View 1 Replies View RelatedCisco Switching/Routing :: Nexus 7000 With Fabric Extenders Nexus 2000?
Mar 15, 2013I have been tasked to replace the existing Cat 6500 and 3750 switches by Nexus 7000 and Nexus 2000.I was told initially my boss plans to get 2 x Nexus 7000 and then eventually blow up to 4 x Nexus 7000s.For Nexus, is there a list of tasks / points that i need to consider for building the initial design?
Can i just link the Nexus 7000 like the following?
N7k-A ========= N7k-B
| |
lots of N2ks lots of N2ks
Cisco Switching/Routing :: Nexus 2232 Stuck On Image Download?
May 8, 2013sh fex
FEX FEX FEX FEX
Number Description State Model Serial
------------------------------------------------------------------------
105 FEX0105 Image Download N2K-C2232TM-E-10GE
sh fex
FEX FEX FEX FEX
Number Description State Model Serial
------------------------------------------------------------------------
105 FEX0105 Offline N2K-C2232TM-E-10GE
[code].....
Cisco Switching/Routing :: Ether-channel Between Nexus 2232 And Blade Switch 3020
Aug 6, 2012I try to connect a cisco blade switch 3020 to Nexus 2232 with etherchannel, but when I connect the second link a obtain flapping on vlans. [code] why the vlans are flapping ? it's something wrong on the config ? [code]
View 7 Replies View RelatedCisco Switching/Routing :: Connecting 3570 Switches To Nexus 2232 To Migrate Server Subnets
Nov 17, 2011I am in the process of migrating our existing server farm subnets to our new Nexus server farm and I discovered something I wasn’t expecting. My intention is to migrate our existing legacy server farm which is comprised of for paired 3750 switches off of our core 6509s and onto the Nexus and connect them to the 2232s via multi gig port-channel connections, two port channels per switch stack.
NOTE this is expected to be a temporary move as next year we intend to install additional N2Ks and move servers over to these directly. But to minimize the outage/downtime it will be better to move the subnets and switchs all at once.
These connections would be grouped 1 gig connections as port channels, one from each switch into one of the two 2232s.
Problem I discovered is Cisco does not intend to have switches connected to the Nexus and it immediately disables the ports when they see BPDUs.
I found a config that does work and it does fail over from one port-channel connection to the other but with the limitation that when the original port channel comes back online it does not fail back over to the original one, an acceptable situation for us. But I am wondering if Cisco would support this design if we did experience issues down the road.
The only issue I really see is to get it to work the config is different on the two N5Ks, see the pert config below for the connections. Both are running the same OS
augs1-ba-ar17# sh ver
Cisco Nexus Operating System (NX-OS) Software
TAC support: [URL]
[Code].....
Cisco Switching/Routing :: Nexus 55548UP - 1GE SFP Module Not Recognized In Fabric Extender
Oct 17, 2012we installed copper and fiber sfp modules in the 2232PP and none would link up. we pulled the sfp modules out and entered the speed 1000 command and re-inserted the module with no success. the same sfp modules works fine in every other cisco device. we must be missing something. running latest nx-os software.
COH-Nexus-02# sh int Eth101/1/1 status
--------------------------------------------------------------------------------
Port Name Status Vlan Duplex Speed Type
--------------------------------------------------------------------------------
[Code].....
Cisco :: Serialization Delay From The Wire / Interface Onto Router / Switch Backplane / Fabric?
Feb 28, 2013So the delay is introduced getting data onto the wire. However say there are two hops to the destination server, each hop is via equal connectivity speeds say 1G interlinks.
Question:
Is there serialization delay FROM the wire/interface onto router/switch backplane/fabric?
Is the serialization delay from backplace/nic back onto the wire to the next hop? - Or if using a switch with equal in/output speed transmitted without serialization?
What happens with a routed interface vs switched?
Most articles discuss the latency induced between the much higher OS/NIC interface out to the wire, but not the switch/router serialization that does or doesn't occur.
Cisco Switching/Routing :: Nexus 5548UP With 2232TM Fabric Extender And Server Teaming
Oct 11, 2012Need clarification on the VPC with 5k and 2248 Fabric Extenders. My question is can each fabric extender uplink to two different 5ks, and at the same time, have servers connected to two both fabric extenders with a VPC.So basically, the server NIC will team with two different fabric extenders, and each fabric extender will connect to two different 5k's.
View 3 Replies View RelatedCisco Switching/Routing :: How To Properly Power Down Nexus 5000 And Fabric Interconnect Switches
May 7, 2013How to properly power down the Nexus 5000 and the fabric interconnect switches? I have looked up and down cisco's and google web for steps, but they are all coming back with the answer to just disconnect the power cables after you have power down all the windows os and exs servers. Before i do that, I just wanted to make sure that that's the correct way to do it or if there are actual commands that I will need to run on the devices to properly power down. I know that the FI do have a command to reboot, but i need them to completely be power down.
View 3 Replies View RelatedCisco Switching/Routing :: 2232 / 5548 Configuring With VLAN
May 15, 2013I have a 2232 dual homed to 2 5548's via a port-channel/ vpc. I have one 5548A and configure the port for the 2232 with a vlan, plug into that port and it doesn't come up (inactive). I go to 5548b (Primary) and configure the port and it comes up.
View 3 Replies View RelatedCisco Switching/Routing :: NX 7K - Scp Speed Is Too Slow
Dec 28, 2012Upgrading a NX 7K. A scp copy of SO image from a server to NX7K bootflash is very very slow. It took more than an hour to copy 30% of n7000-s1-dk9-npe.5.2.7.bin
View 4 Replies View RelatedCisco Switching/Routing :: Fan Speed Configurable In N5k And N7k
May 13, 2012Is the fan speed configurable in n5k and n7k? my customer's n5k temperature already over 50 centigrade,but the fan still 50% speed,may i config them work in full speed?
View 1 Replies View RelatedCisco WAN :: Nexus 7k Router Selection 150 Mbps WAN Access Speed
Apr 17, 2013We have p2p link that interconnects our data centers and the bandwidth is 150 meg link.In the current architecture, one end of the link is Nexus 7k (data center 1) and other end is catalyst 65k (data center 2)..We are planning to migrate this link to routers. We planned to install 3945 router on both data center and move the p2p link to this routers. [code]
View 2 Replies View RelatedCisco Switching/Routing :: SUP7L-E Support For Shared Backplane Mode
Feb 6, 2012Are there any plans to support a "shared backplane mode" like on SUP6-E that enables the use of four 10G oversubscripted uplink ports in redundant mode? now there is support for up to two active 10G links in redundant mode.
View 2 Replies View RelatedLinksys Wireless Router :: Wrt54gs Wifi Download Speed 1/3 Of Wired Speed
Dec 28, 2010I just discovered that my wireless download speeds are 5Mbps, compared to 16Mbps if my laptop is connected directly to the modem or wired through the router. Uploads are 2Mbps either way. I have a WRT54GS v.6 with firmware version v1.52.8 which I updated today, completed by setting factory default through the router webpage after I discovered this discrepancy. The firmware update did not improve the download speed appreciably, if at all.Should the wireless connection be that much slower than the wired connection through the router? If not, what sort of issues could I be having to account for this?
I did just replace my modem when I discovered I was having erratic speedtests and that corrected that problem. That is when I became aware of the wireless issue, so not sure how long that has been the case. I have Charter's 16/2 HSI, living in a sparsely populated area with solid internet service. There is no external nor internal interference on this 2.4Ghz band.
Linksys Wireless Router :: WRT54G Speed Test Shows Slow Speed
Nov 6, 2011I have a Arris DLS with 12 Mbps Download and when I Connect my laptop directly I get the same speed as 12 Mbps but when I do the speed test with my linksys I get only 5 Mbps. How to upgrade to the new WRT54GL or WRT54GS?
View 1 Replies View RelatedBelkin Basic USB Wireless Adapter / Very Slow Download Speed - Upload Speed Is Fine
Jan 11, 2011Recently my desktop has experienced very slow download speeds (~0.11 Mbps), however the upload speed appears to be in line (~2.0Mbps). These numbers are taken from Comcast's speed test (my ISP). It is obviously a problem with my PC because everything else on the network (PS3, Laptop) have great signals with no problems. I just recently reverted the Desktop back to its factory state, and everything was working fine for a couple of months. The desktop in question uses Vista 32-bit and the Belkin Basic USB Wireless Adapter.
View 1 Replies View RelatedCisco Switching/Routing :: 6500 Switching Fabric Bandwidth 720 Is Calculated?
Jan 21, 2012As per my understanding 6509 all slots are dual channel, so 9 slot * 40 per slot (20 g in and 20 g out) = 360 GB How cisco claim the 720 ?? What about the 6513 chassic switch fabric connection?
View 5 Replies View RelatedCisco Switching/Routing :: Switching Fabric And Forwarding Rate C3750x
Aug 6, 2012It is said that the switching fabric of WS-C3750X-24T-E is 160Gbps.Could any body tell me what is switching fabric, any relevance or difference from forwarding rate?,Is there any document to know how will the switch reach the 160Gbps full switching fabric performance?
View 5 Replies View RelatedBroadband :: Will Wired Speed Change With Rated Speed Of Wireless
Mar 9, 2012I am using Linksys wirelless G router, will my wired speed on desktop increase when I change to a wirelless N router for laptop and ethernet for wired desk top? I don't need anymore wireless speed but am wondering if I upgrade will my wired desktop pick up more speed.
View 2 Replies View RelatedCabling / Cards :: Download Speed Breaks Without A Speed Limit?
Jan 24, 2013On board NIC: Intel 82579V Gigabit Network Controller (asus sabertooth x79 motherboard)I installed the drivers for it from intel's site.f I set link speed to auto (chooses 100mbps full duplex) or 100mbps full or half duplex, any HTTP downloads get slowed to a crawl (30kbps) (steam downloads remain at normal speeds). If I set it to 10mbps full duplex, download speeds jump to normal (500kbps for most HTTP sources)his happens on just this new computer (wired connection), any other computers on the network (wireless) work just fine
View 8 Replies View RelatedD-Link DIR-655 :: Download Speed Fine But Upload Speed Is Way Slow?
Mar 17, 2011I live in the tampa bay area, I have bright house (BHN) as my service provider, which provides a Road Runner Lightning (40/5) package. I previously used BHN's top tier (20/2) back in July (and prior) with no problems.
After converting to Lightning in August of this year (2010). Of course, BHN (and every other provider) wants to force a modem/router down your throat, so I had them bridge it (in short, turn it into a dummy modem with no routing). I had an SMC branded modem gateway at the time. I work from home 2 days a week (so I can spend more time with my kids during morning, lunch, right after work) and this requires me to use QoS to ensure my VOIP work calls don't get dropped, if the family is watching youtube videos or watching netflex.
My network was as follows SMC Modem >WAN IP>>WAN Port>>D-link DIR-655>>Switch Ports>PC1, PC2, PC3
Everything seemed fine (from a usability stand point) till about 2 weeks ago when my upload speed seemed to grind to halt. Normally I was able to upload about 200-300K per second, and I noticed this dropped to about 45K per second during a drop box upload. First thing I did was power cycle both my modem and router (in the proper/usual order). After they both come up, I start using speed test to find out what my upload speeds were. I was getting about 39Mbps down, but only .56Mbps up still. I factory reset my router.... test, similar speeds. Power cycle all computers (just in case), and then modem/router. Tested, similar speeds. Updated the firmware to the latest. Same issue
Called BHN customer service, they factor reset it, but it wasn't in bridge mode. If I by passed the 655, in factory mode (non bridge mode) upload speeds returned to better than expected states. If I bridged the cable modem, upload speeds seemed to crash.
Had BHN replace the modem, seemed fixed for a day, then issue came back. Had them come back out and replace it again, this time with a Motorolla Surfboard modem... same issue. Fine during factory reset, however after they bridge the modem, upload speeds were fine. Told BHN I would take it from there.. Connected up the DIR-655, and upload speeds crashed again. (.6Mbps). Called D-Link Support, and the Chinese English speaking rep seemed to not be listening to me and tried to have me adjust my MTU as well as Wireless settings. Long story short... the rep was a level 0 id10t and I hope D-link will consider hiring better employees/contractors. So I was all about to give up and replace it with a DD-WRT capable router (which it takes me a lot to want to swap hardware), when I discovered the wan shaping was on. Which I thought to myself... nah... QoS has never messed up before... why would it be the cause. Turned off wan shapping... and voila. Issue seemed to be insta-resolved.
Unsatisfied with that... I decided to dig a lil deeper. I turned on Wan shaping again, but decided to set the settings manually instead of auto detect.
Here are the settings I used... (Advanced Tab>QoS)
Enable Traffic Shaping - Checked
Automatic Uplink Speed - Unchecked
Manual Uplink Speed - 5000
Connection Type: Cable or Other Broadand Network
Enable QoS Engine - Checked Automatic Classification - unchecked (this checked seemed to affect my upload speed by about 5-10% during testing) Dynamic Fragmentation - unchecked (this checked seemed to be the worse enemy for upload speed)
While I know I'm not any network guru (still have to use a subnet calculator for subnetting), I think I did a pretty good job drilling down the issue (once I got passed my service provider replacing modems).
Anyways, I've had overall good luck with D-Link products, even have a 5 port 10/100 switch (all metal) from 1998 that works great. Hopefully, D-Link will just either put more documentation on the web, or hire better employees.
Cisco Switching/Routing :: Can Plug GLC-T Into N7K-F248XP-25 And Set Speed At 100Mbp
Oct 21, 2012Looking to deploy N7K-F248XP-25s in N7K-C7009s, because the cost and value are really good, however I have some 100Mbps copper connections I'll likely be stuck with for a while. So... can I plug a GLC-T into a N7K-F248XP-25 and set the speed at 100Mbps?
View 1 Replies View RelatedCisco Switching/Routing :: C3750G - Forcing Ports To 1G Speed
Aug 29, 2012I currently have a C3750G connected to a C3560G with default auto-negotiation settings. Ports are up and connected a-100 and a-full. I am trying to change the ports speed to 1G, and have tried all possible combinations of "speed 1000" and "duplex full" setting on both ends to no avail. What should port settings be for 1G speed between the two switches?
Here are the current port settings:C3750G:
interface GigabitEthernet1/0/1
switchport trunk encapsulation dot1q
[Code].....
Cisco Switching/Routing :: Poor Inbound Speed On 2960?
Feb 12, 2013I have 5x Cisco 2960 and 1x Cisco 2960G. All of them are using IOS Version c2960-lanbasek9-mz.122-55.SE6.bin I'm having poor inbound speed with ALL of the Cisco 2960 (except 2960G) although the outbound speed is normal. The port is 100Mbps Full-Duplex, but the max inbound speed on a single connection is around 35Mbps. With the 2960G, I can get max 1Gbps inbound speed on a single connection.
I checked everything and still not know why the 2960 switches can't get max 100Mbps inbound.
Cisco Switching/Routing :: Trunk Speed Between 6509 And NX7000
Nov 2, 2011I have connected a 2 TP trunk between 6509 and nx 7000, as shown above. I am trying to have speed 1000 on both sides.If I set speed 1000 on 6509 Trunk disconnect. How to force speed 1000? [code]
View 4 Replies View RelatedCisco Switching/Routing :: WS C2960G LAN Port Speed Interface Is Low
Sep 19, 2012I am facing port speed issue on WS-C2960G-48TC-L series switch.This switch gig0/X ports connected to onother switches (Cisco and HP both switches are also gigbit ports and directly connected ).but interface is giving only 100mb/s output.ios on WS-C2960G-48TC-L is 12.2(44)SE6
View 15 Replies View RelatedCisco Switching/Routing :: 891W-AGN-A-K9 / Max Wireless Transmission Speed
Oct 12, 2012I have had trouble to verify the support wireless speed and band that CISCO891W-AGN-A-K9 supports. I saw on a vendor website that it supports a max wireless transmission speed of 54Mbps but this seems low for what is supposed to be the current model wireless router which is supports 802.11n. What the maximum supported wireless speed and whether 5Ghz is supported? Plus I am thinking about purchasing it for my home wireless network (upgrading from an 871W).
View 1 Replies View RelatedCisco Switching/Routing :: 3750G-12S-S / Cannot Set Int G1/0/1 Into Speed 100 / Duplex Full
Aug 12, 20113750G-12S-S.Problem description:I had a WS-3750G-12S-S in production with a defective fan tray and needed to change it.I faced to trouble with inter g1/0/1 on the new switch( it worked fine on the old).
Here the config for old switch:
interfacigabitEthernet1/0/1
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 111-113,278,790
switchpmode trunk
speed 100
[code]....
even if I configure speed nonegotiate that does not work.
Cisco Switching/Routing :: Speed Up Connection Between 6509 And 4510
Feb 21, 2013I got a 6509 version 12.1(22)E2 that I am replacing with a 4510E version 3.40SG with Supervisor Engine 7-E. The 6509 is configured with 20 channel-group for dual fiver connection to ten 3550 switches with trunking enabled with isl encapsulation. The 6509 is the VTP server to each of the 3550 switch clients. There are 40 Microsoft Servers attached ot the Gig RJ45 port modules.
I have attached the 4510 to the 6509 with dual fiber connection configured as a channel group with trunking enabled. I am configuring the 4510 the same as the 6509 except I have to use trunking with dot1q encapsulation because isl is not supported on the 4510. I no longer want to use VTP with the 4510 and have set the it as transparent mode. Each of the 3550 switches are changed from isl trunking encapsulation to dot1q and VTP mode is changed to transparent when they are moved from the 6509 to the 4510.
I want to move the switches over a few at a time and not all at once. The first 4 switches attached with no problems and ran with no problems for the user access to the servers still on the 6509 for a week. Then I found out DHCP was not working for the devices attached to the switches on the 4510. I moved one of our domain controllers form the 6509 to the 4510 to fix the DHVP problem. I have now added 2 more switches with users that use an application on a server still on the 6509 and they are getting disconnect errors after logging into it and using it. Other applications on different server also on the 6509 are having no problems. I moved the switches back to the 6509 to get the users up during business hours. I now plan on moving the server for the application that was failing to the 4510 in hopes that it will fix the problem.
Is there something I can do to speed up the connection between the 6509 and the 4510 so I can continue this transition without having to move the servers to the 4510 as I move the users?
Cisco Switching/Routing :: 3508XL - Set Port Speed To 100 On Old GB Switch?
Dec 19, 2012We have an old 3508XL switch. We are trying to connect a new 2960 to it but we purchased the incorrect SFP insert and that speed can only do 100mb. We are getting link flaps and we suspect that it's a speed issue between the two. However, I cannot find how to set the speed on the old OS of the 3508 switch.
Below is a show version of the 3508 switch.
LR0007>show ver
Cisco Internetwork Operating System Software
IOS (tm) C3500XL Software (C3500XL-C3H2S-M), Version 12.0(5)WC17, RELEASE SOFTWARE (fc1)
Copyright (c) 1986-2007 by cisco Systems, Inc.
Compiled Tue 13-Feb-07 15:04 by antonino
[code]....
Cisco Switching/Routing :: 2911 TTCP Speed In Different Directions
May 21, 2013I am troubleshooting some speed issues that I might be having and using TTCP and iperf/jperf. I am testing the LAN speed between our local router and local desktop.
When I run TTCP transmit on the Cisco and receive on the local desktop I get speeds right around 90Mbps, which I would expect because the switch between the Cisco router and the desktop is only 10/100.
When I run TTCP receive on the Cisco and transmit from the same desktop I only get speeds of about 24Mbps to the router.
The router is a 2911 wiht gigabit ports. The switch between the 2 devices is only a 10/100 switch, so I expect to only get around 90Mbps but 24 seems very low.