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4
votes
3answers
74 views

Phantom NIC issue causing eth0/1 to drop out

We are experiencing a very strange and frustrating problem. Our company has servers here in Massachusetts, as well as in California. The issues we are seeing are only on the CA hardware. Out in CA, we ...
1
vote
3answers
115 views

Cascading gigabit switch (10/100/1000) with fast ethernet switch (10/100)

I'm a newbie in networking. I have this question in mind lately. I bought a gigabit switch and tried to cascade it with my existing fast ethernet router and switch. I have 1 server which is connected ...
1
vote
1answer
802 views

How do I factory reset a 3com 5500G-EI?

I have inherited a 3com 5500G-EI without any configuration docs, and I need to reset it to factory defaults. What is the best procedure to do this?
0
votes
1answer
306 views

Broadcast storm [closed]

Possible Duplicate: How managed switches handle Broadcast Multicast and Unicast? An application published broadcast message to a network, and caused network switch to drop packet. I have ...
2
votes
2answers
98 views

Are Multiple NIC Ports Needed for a Cross Connect at a Colocation?

If one is going to run a cross-connect in a data center colocation does that mean that it requires another physical network port in the machine being connected? For example if a machine in a data ...
1
vote
2answers
419 views

Will 100 Mbps client slow down 1000 Mbps network?

Newbie question: We are planning to setup a LAN in our lab, and are looking at gigabit ethernet switches. A couple of our older computers have 100 Mbps ethernet, will they slow down the whole network ...
0
votes
2answers
166 views

Netgear (gsm7224v1) 24-port gigabit switch exhaust fans

I own a Netgear GSM7224v1 (link) 24-port gigabit switch at home. The switch is about 2 years old and works just fine. The two exhaust fans however, are making quite a bit of noise even after I've ...
3
votes
5answers
952 views

How to capture Wireshark packets when using a switched network in Windows

I’ve been asked by our SIP trunk provider to run a Wireshark trace on the network when we receive calls. The issue I’m having is that if I run Wireshark from a laptop plugged into the main switch I ...
0
votes
1answer
167 views

Which switches can I use for Ethernet bonding?

I'm just about to configure a DELL PowerEdge T410 server with 2 network cards. I'm trying to decide for a network switch and I'll need to configure the server for link aggregation later. I read the ...
0
votes
3answers
212 views

What is the difference between a hub and a switch?

I'm sneeking around online store for used stock of hubs, routers and switches for a project I have to build a network infrastructure. So far, I have bought: 1x Cisco 2514 Router; 5x Cisco Serial ...
3
votes
1answer
123 views

Failsafe Ethernet Switches on UAV

As a side project we are working on a new internal network for a small UAV and will base it on 100mbit Ethernet instead of serial coms that's usually used for these types of aircraft. We have gone ...
0
votes
4answers
267 views

What could be the maximum number of hosts on a 100BaseTX ethernet network?

I'm having two ip networks (192.168.1.x and 192.168.2.x) bridged on a server, but all hosts (fixed IPs) are on the same physical 100BaseTX ethernet (with a daisy chain of 48ports switchs). Often, I ...
2
votes
2answers
263 views

H/w suggestions for 24 port PoE switch [closed]

I am looking for a 24 port PoE(IEEE 802.3af) switch to power some Snom phones that I have. Please suggest some appliances. I just need basic L2 functions and wouldn't want to go for a expensive Cisco ...
0
votes
1answer
1k views

Cascading switches: uplink to uplink?

I'm a bit confused as to why I haven't seen any references online to using Switch A's uplink port (1Gbps, 24-port 10/100) to connect to Switch B's uplink port: everything I've seen -- including ...
9
votes
4answers
979 views

How long do managed gigabit ethernet switches take to boot up?

One critical drawback that I have found in researching managed-switches, and one that I have some past experience with is that anything with "lots" of firmware is going to have lots of issues ...
2
votes
1answer
2k 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 ...
0
votes
3answers
405 views

layer 2 failover within the rack

what do you do to avoid downtime caused by top-of-the-rack switch hang / malfunction? some possible solutions are can be found in this presentation. i'm interested in hearing how do you approach the ...
0
votes
5answers
320 views

Replacement Switch Suggestion

We're in the process of upgrading one of our racks from 100MB to 1GB. We currently have a 48 port unmanaged 100MB switch (3Com Baseline Switch 2250). Can anyone recommend a 48 port 1GB switch ideally ...