1
vote
1answer
53 views
Ierrs on Network Interface - Pfsense/Freebsd
Hello all,
We're using PfSense as an internal router/firewall (no connection to WAN). Using the Web-GUI, under Status ---> Interfaces, there's one particular interface where I have some errors:
…
8
votes
2answers
201 views
How to fix the wiring mess that is my server room
So, I have inherited a mess of a server room.
Rack 1: 5x 48 port patch panels; 140 in use | 3x 48 port switches
Rack 2: 4x 48 port patch panels; 120 in use | 3x 48 port switches
Rack 3: 3x 48 …
3
votes
2answers
94 views
Phone 8 wire cable for ethernet network?
I have phone 8 wire cable, shielded, with no pairs (wires go along to each other, no twisting).
I wonder if I can use this cable for wiring an Ethernet network?
Wires in the cable are in the …
41
votes
17answers
2k views
Should network hardware be set to “autonegotiate” speeds or fixed speeds?
We recently had a little problem with networking where multiple servers would intermittently lose network connectivity in a fairly painful-to-resolve way (required hard reboot). This has been going on …
0
votes
2answers
35 views
Cannot ping host stale ARP cache?
I am having a strange issue with a Debian (Lenny/Linux 2.6.26-2-amd64) that has been driving me nuts. On some machines within my network I can ping the host in question just fine, other times I have …
1
vote
1answer
65 views
Failover or load balancing configuration on Apple Xserve and Mac OS X Server Snow Leopard (10.6)
I'm currently installing a number of Apple Xserve boxes running Mac OS X Server (10.6). After poking and prodding for a while I can't find any obvious way, or documentation telling me how, to set up …
5
votes
6answers
215 views
Expected throughput in Gigabit network
Hello everyone,
I've been doing some tests with iperf to measure the network throughput between 2 servers (connected back-to-back thru a crossover cable) and I only see 180 to 200 Mbps. I tried …
2
votes
5answers
109 views
Linux Ethernet/wireless bridging
One of our new requirements for a product I work on is to support Ethernet-to-wireless bridging. Suppose we have two network interfaces: eth0 and ath0 (we're using the Madwifi driver). What sort of …
5
votes
4answers
124 views
What’s better for performance: rack-to-endpoint or rack-to-switch-to-endpoint
When putting Ethernet cables for an office there are two ways to put the cables:
From the rack patch panel a cable to each end-point (workstation).
From the rack patch panel a cable to each …
4
votes
0answers
29 views
Are there any statistics on the number of networks using Ethernet Jumbo frames?
I am often told by Sales Engineers and Product managers that a Layer 2 Ethernet service is not fit for purpose if the maximum supported frame size is in the 1518-1522 range (enough to support standard …
2
votes
5answers
209 views
Does it make sense to use 10Gbit Ethernet in a small business?
Currently, our small business is using 1Gbit Ethernet. We are a very data intensive shop and are currently running into bandwidth limitations between our individual machines and our RAID-based …
0
votes
1answer
87 views
How does Brocade (Foundry) FastIron CX compare to Cisco 3750 stackable switches?
We're considering Brocade's CX series vs. Cisco's 3750 at both core and distribution layers for a new site with gig to desktop, without POE.
If you have any hands-on experience with FastIron CX …
3
votes
3answers
197 views
What if a computer with Ethernet
Hi, I'm just revising for an exam on Networks and Data Communications, and there's one thing I don't get about CSMA/CD and Ethernet. It's supposed to be fairly stable, for instance if a computer drops …
2
votes
3answers
192 views
Link aggregation with DSL and Ethernet, and different ISP’s?
We're a webdev company that has outgrown its ADSL bandwidth. It's currently 4/1 Mbit/s and due to distance we can't simply get faster DSL, whether ADSL or SDSL. Stacking multiple DSL connections is …
0
votes
3answers
55 views
Restore eth2 interface?
Hi, i have centos 5, i have used "ifconfig eth2 down" and the server gets unaccesible, i can access to the files only at the moment, so i cant use "ifconfig eth2 up" to restore it, wich files have i …