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Questions tagged [layer2]

For questions about the OSI layer-2 (data-link layer).

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Can a Bridge forward frames with the destination as broadcast/multicast

I have a question regarding multicast and broadcast frames on a network bridge. Will the bridge forward these frames from one network segment to another network segment ?
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Juniper EX Unicast Flooding

I have a few Juniper EX3300 switches in my core. I'm seeing something strange where packets destined for device with the MAC address 00:90:0b:30:2d:f2 are being flooded out all interfaces. However, an ...
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When exactly the Proposal and Agreement flags are used in RSTP

When does the flags proposal and agreement are set in RSTP? What are its importance?
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How to encapsulate tapped traffic to forward over L2/L3 network?

I am tapping some 10Gb ethernet links at some remote sites (normal passive fibre taps) for some QoS/QoE monitoring. I don't have any dark fibre options at these sites to send the traffic back to a ...
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0answers
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What mechanism/value is used to determine value of line protocol?

All books that I read will say value of line protocol (up/down) is indicator whether data link layer is working or not. Let us look at diagram below by IEEE regarding Ethernet, page 2. If line ...