Fiber Optic Cable Down - No Back-up

Jun 26, 2007

I put this in the co-location section since I am co-locating a server that I host a few Websites on. The server is located in the Pacfic Northwest at a hosting company out there. As you may know, this is a "more remote" area of the United States.

Today, the company lost all Internet access when a Fiber optic cable went down. Not only was my stufff down but the entire hosting company was down. In 10 years of doing Internet development, I have never seen this happen to any hosting company I have worked with no matter how good or bad they were. On top of that, it happened one time last year as well.

According to my co-location provider, the problem happened a long way up stream. SO far that the lines cannot be backed up. Is this true? Could a fiber optic cable fail at some point where it cannot be switched over to another line?

I don't know if I should I believe that or not. It would seem to me that it is a matter of money and they may not have a back-up system in place if the pipe goes down. Is it possible? Who's fault is it?

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Performance Degradation After Installing Fiber Optic Lines In The Office

Feb 16, 2009

Here is the screen shot of the "mtr" running from two servers:

Server1: Fibre optic line from Tata Communication

Server2: DSL line from Tata Communications

Source servers are located in Kolkata India

Target server is located in Fremont California.

The fiber optic cable has:

A. Higher ping time and

B. Higher standard deviation

compared to the DSl line.

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Jun 19, 2007

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May 3, 2008

Ive just being doing some pings and tracerts on burst and it looks to me they have there new X0 fiber installed i still get around 20 hops and average 120ms ping any body found the new transit any quicker, im still deciding weather to go back to burst or not, the speeds are pretty much the same but it is too early to justify there stability

What do you think so far?

Tracing route to []
over a maximum of 30 hops:

1 53 ms 98 ms 98 ms api.home []
2 38 ms 36 ms 35 ms
3 35 ms 35 ms 36 ms
4 36 ms 35 ms 35 ms
5 33 ms 36 ms 36 ms
6 139 ms 189 ms 191 ms
7 43 ms 34 ms 35 ms
8 35 ms 37 ms 36 ms [194.72.31
9 40 ms 38 ms 44 ms [62.6.200
10 38 ms 37 ms 38 ms [62.6.200
11 38 ms 37 ms 35 ms []
12 37 ms 37 ms 37 ms []
13 39 ms 37 ms 37 ms []

14 39 ms 37 ms 37 ms
15 37 ms 37 ms 37 ms []

16 110 ms 111 ms 111 ms []
17 118 ms 119 ms 117 ms []
18 257 ms 209 ms 206 ms []
19 128 ms 130 ms 127 ms []
20 120 ms 121 ms 121 ms []

Trace complete.


Pinging with 32 bytes of data:

Reply from bytes=32 time=121ms TTL=48
Reply from bytes=32 time=122ms TTL=48
Reply from bytes=32 time=122ms TTL=48
Reply from bytes=32 time=120ms TTL=48

Ping statistics for
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 120ms, Maximum = 122ms, Average = 121ms


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Mar 27, 2008

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May 21, 2007

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Fiber will be 10mbps.

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It also included a dedicated line to our offices. Would using a cable line be a bad idea for a hosting connection?

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I am going to have one server as a load balancer then two as the load balanced pair and then a database server.

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Telia Is Reporting A Fiber Cut In The US - Any Other Carriers Impacted

Aug 20, 2007

Telia is reporting a fiber cut in the US - any other carriers impacted?

from Telia:

We regret to advise that we are currently experiencing a cable cut in
the United States. This outage is causing degradation in our IP
backbone, which may affect your service.

The fault has been brought to the attention of senior management, and we
are actively working to resolve the fault. Unfortunately we do not know
when the fault will be resolved.

We will update you as soon as we have further information, and apologise
for the inconvenience caused to you and your customers.

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We have no cable management trays and currently tie up cables with velco and zapstraps, trying to keep power cables to the left and cat5 cables to the right. Unfortunately, even with all our effort, it's really turning into a wall of cabling that is basically insulating each rack and causing a temperature issue (or the potential for one at least).

Even worse, we want to add in KVM over IP hooked up on nearly every server. While I see the great benefits of the KVM, I can't see how on earth we are going to make the cabling work out!

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Apr 24, 2007

I have a Linux Server (CentOS 4.4) running, it has two network cards.

1. Onboard 100MBit (eth0), uses DHCP to obtain IP, this card is the only one that is able to connect to the internet.

2. PCI Gigabit card (eth1), uses static IP, and is connected to my Windows machines via a CROSSOVER cable.
Gateway: NONE

Before I installed the gigabit card all internet was working fine. However now i cannot even ping? here is some more info:

PHP Code:

[root@node home]# ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::213:20ff:fee9:69de/64 Scope:Link
          RX packets:473 errors:0 dropped:0 overruns:0 frame:0
          TX packets:462 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:60513 (59.0 KiB)  TX bytes:497973 (486.3 KiB)

[root@node home]# ifconfig eth1
eth1      Link encap:Ethernet  HWaddr 
          inet addr:  Bcast:  Mask:
          inet6 addr: fe80::20c:76ff:fe7d:46/64 Scope:Link
          RX packets:15996232 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7250441 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1137563077 (1.0 GiB)  TX bytes:437192485 (416.9 MiB)
          Interrupt:177 Base address:0x2f00

[root@node home]# netstat -nr
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface   U         0 0          0 vmnet1   U         0 0          0 eth1   U         0 0          0 eth0   U         0 0          0 vmnet8     U         0 0          0 eth1
[root@node home]# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface    *        U     0      0        0 vmnet1     *        U     0      0        0 eth1     *        U     0      0        0 eth0    *        U     0      0        0 vmnet8     *          U     0      0        0 eth1
[root@node home]# 

Im sure its just a few lines I need to change somewhere, just not sure where?

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