Cabletron Systems SSIM-H2-02 manual Discarded Frames

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SRF Frames

Number of Specifically Routed Frames.

STE Frames

Number of Spanning Tree Explorers.

ARE Frames

Number of All-Routes Explorers.

Unicast Frames

Number of frames with a unicast MAC address as destination.

Broadcast Frames

Number of frames with a Token-Ring broadcast address as destination.

Multicast Frames

Number of frames with a Token-Ring functional or group address as destination.

Reset

When you choose Reset, the counters for frames, bytes and discarded frames are reset. The time since last reset is shown on the screen.

Discarded Frames

When Discarded Frames is chosen on the general statistics display, the screen shows the number of frames discarded on the TS port in both inbound (from TS) and outbound (to TS) directions. The discard reasons are described below.

Discarded Inbound Frames

The following discard reasons are defined for inbound frames:

Invalid VLAN

A frame was received on an unknown VLAN. This is either a VLAN tagged frame containing an unknown VLAN ID, or an untagged frame when no untagged virtual ports are defined. Make sure that the 802.1Q VLAN ID and virtual port tagging mode is set to the same value on both sides of the connection.

Table Invalid VLAN Tag CFI

A VLAN tagged frame with an invalid Canonical Format Indicator (CFI) was received. The CFI is a bit in the Tag Control Information field of a VLAN tag. This bit indicates the bit order of any MAC addresses in the information field. It is 0 for Ethernet format and 1 for Token-Ring format. It should always be 1 in received frames.

SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module Installation and User Guide Statistics