System Description
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Rate enforcement (CIR) with automatic rate fallback via traffic/adaptive shaping when the
network is congested. Automatically restores normal rates when congestion removed
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Congestion control: Backward and Forward Explicit Congestion Notification (BECN/FECN)
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Standard LMIs: ILMI, ANSI Annex D, CCITT Annex A and:
• Auto option for LMI detection/adaptation
• None option for directly connecting XSRs
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Periodic Keep-Alive messages to learn of connection problems
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Multi-protocol interconnect over Frame Relay - RFC-2427
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RFC-2390 Frame Relay Inverse ARP to discover IP address of remote peer when used in multi-
point mode and responds to incoming Inverse ARP requests independent of P2P or MP2P
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Multiple logical interfaces over the same physical Frame Relay port: sub-interfaces
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Quality of Service: standard FIFO queuing, or IP QoS on DLCIs.
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Max PDU size of 1600 bytes
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Traffic shaping
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Frame Relay Fragmentation Implementation Agreement (FRF.12)
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Data Communications Equipment (DCE) support
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Frame Relay over ISDN
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Remote Auto Install over Frame Relay
Dynamic Host Configuration Protocol (DHCP)
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Temporary or permanent network (IP) address allocation to clients
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Network configuration parameter assignment to clients
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Persistent storage/database of network values for network clients - Bindings Database
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Persistent storage of network client lease states kept across reboot
•
Persistent and user-controllable conflict avoidance to prevent duplicate IP address including
configurable ping checking
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Visibility of DHCP network activity and leases through operator reports statistics and logs
•
DHCP Client
Integrated Services Digital Network (ISDN) - BRI/PRI
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Circuit Mode Data (CMD): Channels (DS0s) are switched by the CO to the destination user for
the duration of the call
•
Outgoing calls supported for Backup, DoD/BoD
•
Incoming calls routed to the correct protocol stack based on called number/sub-address and
calling number/sub-address
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Permanent B-channel support, i.e. 64 or 128 kbps lease line. Each BRI port can be set for CMD
or Leased-Line mode of operation
•
BRI supported switches: ETSI
1-6 Overview