New Cisco 2960 Switch Keeps Going Offline Every 12 Hours.
Dec 9, 2007new Cisco 2960 switch keeps going offline every 12 hours.
I will power cycle it, then about 12 hours later it goes off again. This is a brand new switch.
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Cisco 2950 Vs. 2960
May 12, 2008Is there much advantage to going with the 2960 series switches vs. the 2950 series? Basically I'm looking at 24 port and 48 port switches (10/100) with GBIT (copper) uplinks.
View 2 Replies View Related802.3ad (bonding/link Aggregation) On Cisco 2960 W/linux
Aug 14, 2009I thought with 802.3ad I could aggregate the links and thus turn a 3x100 megabit pipes to one 300 meg pipe. The problem is when using the default options (and layer2 xmit mode) I only get the bandwidth of a single connection and I see no other traffic on the other two. Here is output from /proc/net/bonding/bond0:
Code:
Ethernet Channel Bonding Driver: v3.3.0 (June 10, 2008)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer2 (0)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 3
Actor Key: 9
Partner Key: 3
Partner Mac Address: 00:1e:f6:xx:xx:xx
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:1e:8c:xx:xx:xx
Aggregator ID: 1
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 1
Slave Interface: eth3
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 1
Basically it works in that I get a connection but its no different from being on a regular 100/100 connection. Downloading files my machine from completely different networks always only goes out one connection. I don't even see any received/sent packets from the other two interfaces.
When I tell it to use layer3+4 via the xmit_hash_policy paramter when loading the module IE:
modprobe bonding mode=4 xmit_hash_policy=layer3+4 miimon=100
It seems to work as expected except it looks like all incomming traffic comes in on the same interface and its not much different from a normal load balancing (except from a single IP address). I will stick to this method if I have no choice as I don't really care about the download all that much and it seems to do a good job.
Here is /proc/net/bonding/bond0 from that config:
Code:
Ethernet Channel Bonding Driver: v3.3.0 (June 10, 2008)
Bonding Mode: IEEE 802.3ad Dynamic link aggregation
Transmit Hash Policy: layer3+4 (1)
MII Status: up
MII Polling Interval (ms): 100
Up Delay (ms): 0
Down Delay (ms): 0
802.3ad info
LACP rate: slow
Active Aggregator Info:
Aggregator ID: 2
Number of ports: 3
Actor Key: 9
Partner Key: 3
Partner Mac Address: 00:1e:f6:xx:xx:xx
Slave Interface: eth0
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:1e:8c:xx:xx:xx
Aggregator ID: 2
Slave Interface: eth2
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 2
Slave Interface: eth3
MII Status: up
Link Failure Count: 0
Permanent HW addr: 00:04:23:xx:xx:xx
Aggregator ID: 2
My understanding is that with layer2 it should just be one big fat pipe. IE: packets are fragmented and thus even a single connection should be able to sustain 300 megabits (if the other end could provide it). It seems like it just doesn't use my other interfaces at all when doing this.
Here is my config on the cisco 2960:
Code:
interface Port-channel3
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
spanning-tree portfast
!
interface FastEthernet0/10
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
!
interface FastEthernet0/38
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
!
interface FastEthernet0/40
switchport access vlan 100
switchport trunk allowed vlan 100
switchport mode access
switchport nonegotiate
channel-protocol lacp
channel-group 3 mode active
spanning-tree portfast
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
How To 2 Cisco 2950 Switch Connect Together
Jun 6, 2006I have 2 racks in a DC that cross connected together. Now, the datacenter gives me 1 port and I would like to put 1 switch at each rack. I have successfully set up 1 switch and connect to the internet. But, I am unable to set up the other.
Below is a diagram of what I want to do: ...
Assigning IP Addresses For Cisco Switch
Jan 29, 2009I'm switching my colo and I currently am going to be hosting in my own colo; therefore I'm going to be switching IP addresses for all my servers.
I have a cisco switch, an APC and a few servers ... I know how to change the IP addresses within linux, but I do not know how to assign them within the switch.
Does anyone know how to do this?
Also, since I'm changing everything, does anyone know if the gateway IP address on each server has to be changed? If so, then how do you do it?
Cisco Switch IP Route Setup
Dec 1, 2008Cisco Switch IP Route setup
This is probably an easy and simple task for someone that have a good knowledge in Cisco, BGP and Blackhole/Synchole communities.
We do have a Cisco 2948G that is our border and through this equipment we apply Blackhole (a sequence of commands to filter all the traffic from the world except our country, this is done by communities that is setup in cisco).
These are the sequence of the commands to apply it for IP 189.1.XXX.40
Enter configuration commands, one per line. End with CNTL/Z. asw-hl01(config)#router bgp 184XX
asw-hl01(config-router)#network 189.1.XXX.40 mask 255.255.255.255 asw-hl01(config-router)#exit
asw-hl01(config)#access-list 50 permit 189.1.XXX.40
asw-hl01(config)#ip route 189.1.XXX.40 255.255.255.255 Null0 250 asw-hl01(config)#
I have another Cisco 2948G that is connected in a FastEthernet port of the border above, and this other cisco is holding another subnet. To make it clear,
Border - I have 189.1.XXX.1 ~ 189.1.XXX.127 (subnet 255.255.255.128)
Cisco2 - I have 189.1.XXX.128 ~ 189.1.XXX.255 (subnet 255.255.255.128)
This is being done through a ip route from Border to Cisco2 to forward subnet 128 ~ 255 to the switch,
ip route 189.1.XXX.128 255.255.255.128 172.16.1.2
Ps: 172.16.1.2 is the internal IP for switch2
Now we go to the problem. If I want to apply a Blackhole (those sequence of commands for an IP located at subnet 128 ~ 255 switch2) it block all the traffic for that given IP, and I cant get access from national backbones. To make it clear,
Blackhole for IP 1 ~ 128 - It works fine
Blackhole for IP 128 ~ 255 - It doesnt work correctly, instead of blocking only international traffic its blocking everything in the world
Cisco Catalyst Switch Setup
Dec 10, 2007I recently acquired a 2950 switch brand new, this is now on production but I needed several things to be setup on the switch such as SNMP, setup an IP to access it over a browser, etc. etc.
Do you know somebody who offers a setup service for cisco switches?
Switch Cisco 2924 Or 2950
Nov 26, 2007Since now I utilize Cisco 2924 in my racks, now I am going to install a new rack and I want to know if to install again 2924 or you recommend me 2950? what important differences (pros and cons) offers the 2950 front to 2924?
View 11 Replies View RelatedActivate/deactivate Cisco Switch Port With SNMP
Apr 4, 2007I have a Cisco 2950 and would like to make a script to activate or deactivate a switch port with snmp.
Does someone now the OID or how I can get this? I searched now very long for this in google, but I'm not able to find it.
Cisco 2950 - How To Enable "Cisco Network Assistant"
Dec 16, 2007My host has helped me to install a switch. However, I don't know how to configure using the command line. Could anyone help me?
I need to be able to connect to my Cisco switch using Cisco Network Assistant. If you know the command sequence,
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?
ThePlanet.com Is Offline
Aug 12, 2008I have two dedicated linux servers with the planet and about an hour ago as I was testing a site on one I noticed it got terribly slow. I'm lazy sometimes and just assumed that I could fix the problem with a reboot so I went typed in the control panel address that ThePlanet.com uses for clients.
Behold, nothing. The site won't load and I noticed that theplanet.com won't load either. I am able to access my site still but its very slow, is anyone else noticing this? Is it a problem with my ISP?
My site - [url]
ThePlanet - [url]
Offline Backup
Nov 10, 2008I plan to set up offline backup on my old dedicated server. And old stuff might get problems so...
According to the info in DirectAdmin I have used aprox 14Gb space on the server, and I do not think of adding much more on it in the nearest future.
If I subscribe to a offline Backup service would it be a one to one ratio on the space needed, or should I calculate more or less space than I actually have. I see some offers 10Gb and others 15Gb packages as starters.
It looks as most people use rsync? Can it be set up with compression of the files, or would an ordinary backup be better/easier to restore. I'm here thinking not only of a full restore of the server but also on restoring of an single account/domain.
What about Databases? Are they easily backed up/restored as well?
Versaweb Offline
Jun 27, 2008I am wondering if anyone else has downtime with Versaweb just about 15 mins ago. I got 2 servers there and both are offline.
Also website for Versaweb is offline as well, so is support area.
I wondering if anyone has information reguarding this?
I've had good luck with host so far in past, this is frist time
i've had this sort of issue.
Server Offline And DNS
Oct 13, 2007Our servers will be offline next week for some hours (8 hours or more)
Is there a way to setup our DNS to send users to another server/domain (www2.mydomain.com) while first domain/server is offline?... like MX email setup... if first mx is down, try the second... ando so on... At least to show some message...
If DNS setup is not the solution what should I do? Change DNS Ips some hours after servers go offline? I guess this is not the best solution because DNS takes time to propagate...?
Server Keeps Going Offline
Apr 1, 2008My server keeps going offline after hours of it been stable. I believe it is DoS attacks but I'm really unsure how to block them, would I need to get a firewall? if I do would this help the problem?
View 6 Replies View RelatedFuturehosting Is Offline
Jul 27, 2007i have a vps with futurehosting company and all is down,my websites,the support..
anyone have the same problem?
DNS Server Is Offline
Feb 1, 2007my site <<snipped>> is not opening,
u can see here [url]
DNS server is offline
i hav vps from fdcservers
Why Web4Africa Support Is Always Offline
Jan 19, 2009i ve bought $10 Godaddy GC from them but they are not responding.
I ve send them 3 tickets and didn t get answer.
I don t know what to do,i need that GC.
Email Offline Service
Jan 7, 2008about Email Offline Service, who can recommend for me and intro some link to teach me about that.
This email offline service is use catch-all funtion to work. I have tested with my VPS and installed kerio mail software to test. It worked okie but i have a problem . My customer can't check bandswidth and space mailbox of them when they were using my service/monthly.
Now i need a control panel that can manage BW and space of account used to in monthly. Don't need control panel look like plesk, CPanel, HELM, HC...because it's full of funtion but so expensive..
Offline Courtesy Calls
May 21, 2008We've been kicking around the idea here of beginning courtesy calls to self-managed clients whose servers become unreachable by simple ICMP. I imagine most of our self-managed server clients don't know it, but we actually monitor about all of these servers already as to more easily track if there are any issues effecting just a small segment of our network; and we we certainly have the resources with people at our main office watching those monitors at all hours, so one starts to wonder- why not just let clients take advantage of that?
As logic would have it, we're getting a phone call anyway if a server becomes unreachable by SSH or RDP; and really, despite the fact that just about every hosting review I see is 95% talking about how fast they got their initial service.. the amount of time they can keep their server is working seems to be what's really important to people, so why not give an admin a head-start on an issue by having someone at the data center call you?
We thought about that question a lot, and started to realize there are quite a lot of assumptions we were making. For example- what if it's just a dev server; do you really want a call at 3 AM to let you know a script went in infinite loop? Or you have a firewall up that doesn't respond to ping? (we'd only call once before taking note, but all the same). What about our server resellers that are just disabling a power port until they have a new client?
Then the idea of allowing clients to choose at signup comes into play- and we don't really want to set high monitoring expectations on self-managed servers. We understand that a good % of clients know what they're doing and can take care of their own server administration well, but a good % more would be posting a 10 page thread flaming us right here and all over the internet about how we ruined their life by not restarting their software daemon on a server that we don't even record root access to (that genre of general discussion is already a pretty popular one on this board without us arbitrarily raising self-managed server expections).
Anyway, if it were your server, what would you want a provider to do?
My Domains Get Redirected If They Are Offline
Jun 28, 2007I have a situation where if domain2 or domain3 is offline, people visiting them will get redirected to domain1 (since domain1 is the top of the hierarchy in the virtualhost). If I type in the IP address 11.22.333.44, I get redirected to domain1. I don't want this to happen. I rather have it show an error page or something instead. Am I missing anything? Here's the sample from my httpd.conf file:
Code:
NameVirtualHost 11.22.333.44
<VirtualHost www.domain1.com>
DocumentRoot /home/domain1/public_html
ServerName domain1.com
ScriptAlias /cgi-bin /home/domain1/public_html/cgi-bin
</VirtualHost>
<VirtualHost www.domain2.com>
DocumentRoot /home/domain2/public_html
ServerName domain2.com
ScriptAlias /cgi-bin /home/domain2/public_html/cgi-bin
</VirtualHost>
<VirtualHost www.domain3.com>
DocumentRoot /home/domain3/public_html
ServerName domain3.com
ScriptAlias /cgi-bin /home/domain3/public_html/cgi-bin
</VirtualHost>
WiredTree Support Offline During Weekends?
Mar 29, 2009WiredTree support offline during weekends?
I have 2 open tickets and they haven't been replied to since Friday night. Their sales live support seems to be away all weekend as well (I'm not sure). I'm not complaining or anything, I was just wondering if they don't work at all on weekends?
Best Steps When Resold Hosting Goes Offline
Jul 14, 2009I resell hosting and for the first time in 10 years, the hosting company's servers have gone down and my clients sites are currently down, including email (ouch!).
Any experience with this or suggestions on how to communicate and rectify the situation with my customers? None of them are doing major ecommerce so I don't think there is a significant loss of sales, but regardless, their site is down. I take pride in providing great service and want to be straight up with them and more than fair.
I was thinking of extending their current hosting and acquiring a backup host in the rare event that this happens again so at least their site will be live, even if email is not.
I3d.net Never Cares For Their Customer..! Offline From Last 2 Days
Oct 29, 2009do you have any problem server offline till yet?
they wrote message on their site that it would take maximum 4 hours for moving server to our new DataCenter.
Now its more than 35-40Hours server are offline no response from their support team.
m really fed up with their services.
Iphone Lighttpd-no Localhost When Offline
Feb 23, 2008Does anyone know where the seek order information is located on an apple iphone. I installed lighttpd on the mobile, however I can only see localhost when I'm online.
View 2 Replies View RelatedServer Regularily Crashes And Goes Offline
Aug 24, 2008I have a dedicated server with burst.net and it's been pretty good, well, it was, but more recently I've found it seems to be crashing every day, at least once. On the server I have created 2 VPS's, both have cPanel installed, however every day I am receiving emails from my server telling me that cPanel has crashed and the server has to have been rebooted, which seems odd.
I've contacted cPanel support before, numerous times now and everytime they tell me that they're looking into it, they update cPanel but the problem persists.
has anyone got any experience with this?
Server information:
2048MB Ram
2.8GHZ processor
centOS 5
hyperVM
Each VPS Has 1024mb ram assigned to it, and it doesn't seem to be a problem with ram that is causing it, because the VPS's never use more than 200MB of ram each. Each VPS was created in hyperVM with the "OpenVZ" type selected. Could there be a problem with my server, as in, hardware, or is this a software problem? Has anyone been through this experience before? I'm mighty confused about what's going on.
