Is It Possible To Load EMI To 3550 SMI Switch
Jan 25, 2007Is it possible to load the latest EMI IOS to 3550 SMI switch?
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May Switch Cause High Load On Powerful Server
Jul 28, 2009I have two quad core processors and load is like 15.
May it be caused by switch if it doesnt let traffic trough properly?
if dmesg grep eth shows 100 full duplex is it normal or should it be 1000 full duplex?
how can I make it 1000 full duplex on centos 5?
Quote:
0000:0a:02.0: eth0: (PCI Express:2.5GB/s:Width x4)
0000:0a:02.0: eth0: Intel(R) PRO/1000 Network Connection
0000:0a:02.0: eth0: MAC: 3, PHY: 5, PBA No: ffffff-0ff
0000:0a:02.0: eth1: (PCI Express:2.5GB/s:Width x4)
0000:0a:02.0: eth1: Intel(R) PRO/1000 Network Connection
0000:0a:02.0: eth1: MAC: 3, PHY: 5, PBA No: ffffff-0ff
ADDRCONF(NETDEV_UP): eth0: link is not ready
0000:0a:02.0: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth0: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
0000:0a:02.0: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth1: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
eth0: no IPv6 routers present
eth1: no IPv6 routers present
ADDRCONF(NETDEV_UP): eth0: link is not ready
0000:0a:02.0: eth0: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth0: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
ADDRCONF(NETDEV_UP): eth1: link is not ready
0000:0a:02.0: eth1: Link is Up 100 Mbps Full Duplex, Flow Control: RX/TX
0000:0a:02.0: eth1: 10/100 speed: disabling TSO
ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready
eth0: no IPv6 routers present
eth1: no IPv6 routers present
MRTG And 3550
Aug 15, 2007I have mrtg working fine on about 10 2650's, however now that I am trying to add 2950 and 3550's I cant seem to get MRTG to connect to get data.
I added the community the same as our other communities.
snmp-server community blah-r34d RO 30
snmp-server host 10.10.0.134 blah-r34d snmp
the 10.10.48.3 is the IP to vlan1 for the switch.
SNMP Error:
no response received
SNMPv1_Session (remote host: "10.10.48.3" [10.10.48.3].161)
community: "blah-r34d"
request ID: 554709748
PDU bufsize: 8000 bytes
timeout: 2s
retries: 5
backoff: 1)
at /usr/local/mrtg-2/bin/../lib/mrtg2/SNMP_util.pm line 627
SNMPWALK Problem for 1.3.6.1.2.1.1 on blah-r34d@10.10.48.3::::::v4only
at ./cfgmaker line 940
WARNING: Skipping blah-r34d@10.10.48.3: as no info could be retrieved
Cisco 3750 Vs 3550?
Mar 21, 2007What're the main differences between a 3550 and 3750? (basic 24 port models i.e.3750-TS)
View 4 Replies View RelatedPacket Loss On Cisco 3550
Mar 19, 2007I'm trying to find out why a single interface is causing packet loss on my entire network.
The network consists of four 2924's trunked to a 3550. I have about 20 vlans and a single default route for all traffic my uplink.
The network is perfect until I enable a single server. After I issue a 'no shut' on the interface packet loss is anywhere from 5% to 20% for anything going through the 3550 or even pings from the 3550 to other switches or the uplink.
Here's the statistics/settings of the interface after 1 minute of activity:
Code:
interface FastEthernet0/1
description 228
switchport access vlan 58
switchport mode dynamic desirable
speed 100
duplex full
spanning-tree portfast
FastEthernet0/1 is up, line protocol is up (connected)
Hardware is Fast Ethernet, address is 0014.f2e6.df01 (bia 0014.f2e6.df01)
Description: 228
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 100Mb/s, media type is 10/100BaseTX
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:01:01
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 2536000 bits/sec, 924 packets/sec
5 minute output rate 341000 bits/sec, 469 packets/sec
60922 packets input, 21630544 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 2 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
31585 packets output, 2859788 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 PAUSE output
0 output buffer failures, 0 output buffers swapped out
Transmit FastEthernet0/1 Receive
3583183 Bytes 27018085 Bytes
39516 Unicast frames 76403 Unicast frames
46 Multicast frames 0 Multicast frames
0 Broadcast frames 0 Broadcast frames
0 Discarded frames 0 No dest, unicast
0 Too old frames 0 No dest, multicast
0 Deferred frames 0 No dest, broadcast
0 1 collision frames
0 2 collision frames 0 FCS errors
0 3 collision frames 0 Oversize frames
0 4 collision frames 0 Undersize frames
0 5 collision frames 0 Collision fragments
0 6 collision frames
0 7 collision frames 4355 Minimum size frames
0 8 collision frames 56237 65 to 127 byte frames
0 9 collision frames 1205 128 to 255 byte frames
0 10 collision frames 14 256 to 511 byte frames
0 11 collision frames 67 512 to 1023 byte frames
0 12 collision frames 14528 1024 to 1518 byte frames
0 13 collision frames
0 14 collision frames 0 Flooded frames
0 15 collision frames 3 Overrun frames
0 Excessive collisions 0 VLAN filtered frames
0 Late collisions 0 Source routed frames
0 Good (1 coll) frames 0 Valid oversize frames
0 Good(>1 coll) frames 0 Pause frames
0 Pause frames 0 Symbol error frames
0 VLAN discard frames 0 Invalid frames, too large
0 Excess defer frames 0 Valid frames, too large
0 Too large frames 0 Invalid frames, too small
3672 64 byte frames 0 Valid frames, too small
34066 127 byte frames
2152 255 byte frames
110 511 byte frames
38 1023 byte frames
28 1518 byte frames
CPU utilization for five seconds: 13%/3%; one minute: 12%; five minutes: 9%
77 1317620 3220725 409 9.27% 8.35% 6.20% 0 IP Input
How does 1400 packets/second (4mbits) cause my 3550 to drop packets?
Use Two Switch To Do HA Avoid Switch Fail
Sep 18, 2009a sales told me i can buy two switch and do series connection,
then if one fail,another will continue to work,
it will take high HA,
but i still can not understand how to do it and work,
could you know what it is?
Website Extremely Slow To Load/doesn't Load (numtcpsock)
Dec 20, 2007I've been having trouble with my VPS for a while now. In the QoS alerts page in Virtuozzo it seems to be a problem with numtcpsock and tcprcvbuf, mainly numtcpsock.
Copy these into the browser:
i18.photobucket.com/albums/b106/gnatfish/qosnumtcpsock2.jpg
And when i run cat /proc/user_beancounters:
i18.photobucket.com/albums/b106/gnatfish/beancounters2.jpg
This line is particularly scary:
numtcpsock 164 164 166 166 7321
What do i need to do, to get the website running again? It's only one site on the vps a proxy. So i thought a vps would be able to handle one proxy.
Load Testing :: Server Load Testers ( Commercial )?
May 6, 2008Anyone know of some good server load testers ( commercial )?
Im not looking for application based load testing, I need real web server load testing... need to see how much traffic this one site can take before it cries.
Some Sites Load Slow, Some Sites Load Fine, Server Load Is Fine
Aug 12, 2008I'm having the oddest issue. For some reason, some of the websites on my server load fine, and some take a really long time to load (2 minutes).
Now, the server load is fine, and the size of the sites aren't the issue either. I've restarted Apache and a couple more services, and still the same sites seem to load very slow.
What could be causing this since it's only effecting certain websites?
Switch To VPS
Jan 8, 2009I currently have a dedicated server, which is hosting several websites. I'm happy with the service I'm getting, but I'm trying to save money. I'm paying $120/month for the dedicated server. Spending half of that each month would be great.
Right now, the websites are either static websites, or are simple database driven websites with not much traffic. My server load averages are pretty close to 0.01
I would think a VPS would be fine for my needs. However, I may have a site I will host in the future that is database driven and uses Ruby on Rails. It would probably have 10-20 users online at any given time, and maybe several hundred subscribers total.
Would a VPS still work in this instance, or should I stick with a dedicated machine?
1 Gb/s Switch
Jul 23, 2009We have 1 Gb/s channel. We want connect it to switch, than to two routers (first - main, and second - emergency, which will began work if first one dies).
View 1 Replies View RelatedSwitch
Feb 19, 2007I'm sending off about 6 servers off to colo soon, and looking for a basic switch..
I would prefer it to be a Cisco switch (but doesnt have to be, just that i'm used to IOS), not used.
Fairly cheap and nothing overkill. Just going to be pushing 20Mbit/sec.
Must haves : vLan capabilities, SNMP, 10/100mbit upink, able to cap ports at non-standard rates (eg. 1mbit/11mbit).
10G Switch Recommendations
Sep 10, 2009For those who have used 10G switches...which model/vendor would you recommend and why?
View 14 Replies View RelatedL3 Switch That Does VLANs?
Sep 5, 2006I need a basic L3 switch for maybe 25 mbps that will do hopefully up to 50 VLANs and which will not require me to hire someone to configure it.
As much as I like Cisco, that rules them out.
The reason I'd like a Layer 3 switch is so that I can run my backups and inter-server transfers without adding to my bandwidth bill. Also, VLANS are a critical requirement as i have a lot of customers with root on their managed servers.
So i am looking at HP [gasp] switches. How "easy" is the web-based configuration widget? [I'm an advanced unix admin but networking is a mystery to me.]
This is a starter switch and once i have a full cab of servers I'll be able to spend $7K on a pair of 3560s and hire someone to configure them for me ... but until then what can i get to meet my requirements?
Connect Switch
May 10, 2009This week connectswitch's service has not been that good. Basically first they restart the node without prior notice and our vps was down for 7 hours. and now we buy our cPanel license via them and they havent paid it so the license is now expired although we have paid them for it.
View 11 Replies View Related10GE Switch
Sep 26, 2009we need more than 24x10 GE ports L2 switch. We have few Foundry SX800.
But we need opinion about Force10 S150 or Juniper EX-2500?
Or stay with Foundry and its SX1600?
Experience With SMC Switch?
Sep 19, 2009i find the brand of SMC,
do you have experience with SMC switch?
Cisco Switch
Sep 23, 2009I am looking at picking up a switch to mess around with at home. I found the following within driving distance but have no idea of which one will give me more up to date, hands on experience. Any feedback is greatly appreciated.
Used Cisco WS-C5509 Chassis with power supply ( POWER SUPPLY 34-0870-01), and fan (WSC5509FAN)
Cisco WS-X5530-E2 Supervisor Engine III Modules
Cisco Systems WS-U5537-FETX CISCO 4 PORT 100BASETX UPLINK MODULE
Cisco WS-X5234-RJ45 Switch Modules X 8
$160 each.
Cisco WS-C5500 Chassis
POWER SUPPLY 34-0773-03
Cisco Ws-x5550 Supervisor Engine Iii G-series
WS-X5234-RJ45 X 11
For $200
Cisco WS-C5505 Chassis
Cisco WS-X5530-E2 Supervisor Engine III Modules
Cisco WS-U5533-FEFX-MMF Supervisor Engine III Uplink Modules
Cisco WS-X5225R Switch Modules X 2
For $140
Switch Buying
Jul 27, 2009which switches to buy as there are a myriad of options out there and I'm quite frankly a bit lost.
After reading through a bunch of posts here as well it looks like most people are leaning towards the Cisco Catalyst or HP ProCurve lines.
My requirements are:
- min. 24 Ports (4 SFP ports) 10/100/1000
- Layer 3 routing
- Low latency is more important than high throughput
- Switches will handle a lot of UDP multicasting, thus adequate buffers are important to minimize packet loss due to overflowing buffers
- Budget is ~$2k/switch
Why Make The Switch
Apr 15, 2009What is the purpose of making the switch. If i were to get "unlimited/umetered" shared hosting with cpanel, how is that different then getting a vps with cpanel?
Other then getting large amounts of traffic, what is the purpose?
Switch Off From HostingPuppy...
Apr 27, 2009Requirements:
My budget: $4 per month
Space needed: 1GB+
Traffic: 20GB per month
PayPal payment only.
Multiple domain hosting.
CPanel.
And reliable at long last!
Router VS Switch
Feb 13, 2008We have a small hosting company (currently 24 racks) that we are expanding to hold 100 racks. We have several 3640 series routers behind a 7200 series router (our edge router) that feed into numerous 2950 switches and 515 & 525 pix firewalls then into the racks with customer supplied switches within the rack. I want to replace all the 3640 and 2950 switches with a 6500 series switch. The only routing we do within the 3640's is subnet routing to the switches which make up individual networks for each customer. My goal is to use the 6500 switch to limit bandwidth for each port feeding a customer and to eliminate all but the 7200 router and the 2950 switches. Does anyone know of a reason or reasons this would not work or if it's just a bad idea. Looking for pro's and con's,
View 2 Replies View RelatedDual PSU Switch
Jul 8, 2008Does anyone know of a fairly low cost dual power supply Ethernet switch. Nothing fancy is needed, just a simple 12-24 port switch that has redundant power features.
Our router and four little servers all have dual power supplies. Two big UPS units in a redundant setup would work great for us. The only weak link in the setup is the switch.
Cisco2960 Switch
May 4, 2008I just bought 2 Gbit dedicated bandwidth for me, and my customers. This is the switch the DC gave me. I know it is a 24 port switch, that can handle up to 4 Gbit of bandwidth. And that you can give each port its own dedicated bandwidth.
But this is my question. Off this switch can I give metered bandwidth? Like 2000 GB Bandwidth?
Also how would I offer unmeterd bandwidth? Like hook up a cheap Linksys up to it and limit the bandwidth to the port that the Linksys is in?
Backend Switch
Apr 8, 2007I was just wondering what switch everyone would recommend for running a back-end network. We plan to push mainly backup and management traffic over this network. The idea is to have an NAS box connected at 1GBit/sec and all of the servers at 100Mbit/sec backing up to that.
We currently use Cisco Catalyst 2960's to connect the servers to the front-end so it would make sense to use 2960G's for the back-end to keep the overall management of things simplified. There is of course quite a big price difference between a standard 2960 and a 2960G.
Picking A Switch
Apr 25, 2008one of my clients build out their network but are still green when it comes to the switch market that I decided to get some input :-)
Pretty much, we're needing the following:
- VLAN support (standard thing)
- Per IP accounting (sFlow/netflow)
- multiple uplinks and ability to segment?
Pretty much, we want to be able to be able to seperate our network to allow for us to have cheaper providers for high bandwidth usage and then the other side for gameservers and things like that.
Now, I'm thinking that maybe it would be better to BGP the two and simply separate clients by their IP space. Now, my next question is that sounds pretty straight forward, but can we control BGP on a low number of IP's? Say we have a user with 1 - 2 IP's for a single gameserver, can we control it so say that IP only gets Provider #1 in their transit?
I've been checking models of switches and have found both the HP 2848 and the Foundry FES4802. Both are within the same price range which is nice, but the foundry seems to offer IPv6 and layer3.
Switch/router
Mar 29, 2007I have been thinking of getting a switch/router when I rent 10U´s of space in a DC, but what to get?
I need to be able to read the trafficusage on each port/IP for billing purpose.
havent got a clue what to buy, have been told that you can do it with a 1U server to get more statistic out of it, but what OS to use?
Switch With BW-graph
Sep 12, 2007I want to do a bit of colocation, and eventhough I can pay my way out of this I might be able to save a lot each month by doing it my self.
I want to be able to get a graph of the monthly BW up/down for each IP, and it could be nice to be able to se how much of my 100mbit line the servers use.
It should be reliable so it would not be a weak point in the network and easy to use.
Switch Redundancy
Apr 11, 2008What are the smaller shops doing for switch redundancy? We have all our machines on dual Com Ed feeds but most switches in the $1k-$3k range only have one power supply. We recently had a power strip go flakey and of course the switch was plugged into it.
Is the best solution getting two switches and hooking each machine up to both? How hard is that to setup in Linux? I've used keepalived for whole machine failover but not for network failover.
Unsure What To Use For As My Switch
Feb 26, 2007I'm just getting into the world that is colo.
I'm going to be setting up 2 machines in my cabinet shortly, neither one having very much traffic at all (maybe 4000 visitors - 100GB traffic - per month between them).
Once they are setup, I plan to move 2 more into the cabinet, which I'm currently leasing at another Data Center. These two are higher volume (unsure as far as the number of visitors) but I would guess about 20GB of daily transfer (spiking at about 6.0 Mbps occasionally) between the two of them.
The next piece of the puzzle that I need to figure out, is what switch to purchase (and ultimately why). My plan was to use just a 16 port D-Link to begin with, but I'm unsure as to whether or not this will be insufficient.
Switch And Data IPO...
Feb 9, 2007Switch And Data, a provider of network neutral data centers and colocation services, just had an IPO yesterday. They filed to sell about 1/3 of their shares priced at the high end ($17). I was wondering if anyone here had personal experience with the company, and could offer some insight on how they stack up versus Equinix and other competitors.
Switch And Data trading symbol: SDXC
Equinix trading symbol: EQIX
Equinix has been up a lot this year and has a huge market cap of 2.3Bil ($80/share), with revenues of 269Mil, gross profit 63.7Mil, net income -49Mil.
I calculated Switch And Data has around 35.9 million total shares, which puts its current market cap at around 720Mil ($20/share). I couldn't find any 2006 numbers, but in 2005 they had 105Mil revenues and -11.3Mil net income.
How comparable are these two companies? Does SDXC deserve to trade at a comparable level to EQIX? What do the experts at WHT think?