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Ping between 2 switches over fiber

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6 replies

by andrieum 1 view

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Hi,

I have a CISCO 3500 Switch with Gigabit Ethernet interface and a Nortel Layer 2/3 Fiber Gigabit Ethernet Switch Modules in an IBM BladeCenter. I have set IPs on both (10.10.10.1 on the CISCO and 10.10.10.4 on the Nortel) and they are linked via Fiber optic cable. The leds are green on both sides and the CISCO shows the Interface as up when connected and down when disconnected but I can't ping one from the other.

I am completely new to Fiber and am at a loss at what to test now.

Any idea any one ?

6 replies

by tmalo627

Whether you're using fiber or cat 5 shouldn't matter. Make sure the firewalls are not blocking IGMP packets. That's the protocol used for PING.

by andrieum

... as the 2 devices are directly connected to each other via the fiber cable. My PC is also directly connected to the CISCO switch (through cat 5).

by tmalo627

Can you PING either of those switches from any other computer on the network?

by andrieum

... I can ping the CISCO switch from many different PCs connected to it via cat 5 and I can ping the Nortel switch from the BladeCenter Management Module.

by tmalo627

any type of security settings for those fiber ports on either of those switches?

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