Efficiencies of using one port vs. all ports

Discussion in 'Cisco/Linksys Wireless Routers' started by mattjay, Feb 24, 2007.

  1. mattjay

    mattjay LI Guru Member

    A small business I'm working with has a LAN that serves about 25-30 PCs (including about 5 servers that are used both internally and externally).

    All of these machines connect into either a 24-port Intellinet switch or one of two Linksys EF4124's. The two EF4124's both uplink into the Intellinet box which then connects to ONE of the wired ports on a WRT54G. The other three wired ports on the WRT are not empty. The wireless features of the router (although active) are not being used.

    My questions are: why are the ntwk guys piping all of this activity through one port on the WRT? Wouldn't better performance be achieved by connecting the two EF4124s into router ports themselves?

    (Is the WRT54G even a wise choice in such a scenario?)

    Thanks for your advice.
  2. grcore

    grcore Network Guru Member

    All the activity is not piped through the WRT, only WAN traffic (if the WRT is used for WAN at all).

    Connecting EF4124s directly to the WRT will not enhace throughput, and will cause network instability in the event the router reboots. Connecting them directly to the WRT will not offer any performance gain.

    Whether the WRT is a wise choice or not would depend on what it is used for. My guess is because the majority of traffic is internal.
  3. mattjay

    mattjay LI Guru Member

    I think I am guilty of a fundamental misunderstanding somewhere.

    If I am "reading between the lines" of your posting correctly, you are saying that the Intellinet machine is able to keep track of the IP of each PC that is connected into itself OR the two "downstream" EF4124s. So, if a packet arrives from a PC that is destined for another PC on the LAN, the Intellinet machine does not need to "consult" with the router on how to route it?

    Then the only traffic that would need to be "piped" through the single WRT port is internet traffic (browsing, email hosted offsite, dns, etc..)?

    When each PC boots up, (whether connected into the Intellinet box or the EF4124s), it gets its IP from the router. And then the downstream machines (Intellinet/4124s) "remember" these IPs?

    Curious: wouldn't a router reboot always cause instability in this scenario? Some machines use DHCP, others use a static IP. Wouldn't the downstream machines have to adjust themselves somehow to accommodate any PCs that might be assigned a new IP?
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