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The CRF communicates via a logical, virtual port with the bridge relay function, which functions as a multiport (virtual) bridge between the logical rings. The SmartStack
There are two levels of relay functions supported by the SmartStack
Source Route Switching (SRS)
This mode is used between ports comprising a logical ring.
SRS switching combines the normal transparent bridge function with the ability to forward frames based on source route information to locally attached
The switch learns MAC addresses and
Parallel paths are eliminated via the IEEE 802.1D Spanning Tree Protocol. Note that on SmartStack
➽Note: On SmartStack
Source Route Bridging (SRB)
The BRF acts as a multiport source route bridge between CRFs with the following characteristics:
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Each logical ring has a different ring number
Source route frames are forwarded between the logical rings by the bridge relay function based on the route information field
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SmartStack | Switch Overview |