HP 200 Series Services And Applications page 297

Data-Link Layer Specification:
CCITT Rec. Q.922 (two-, three-, and four-byte addressing formats).
Compatible with Frame Relay Forum's "Frame Relay Specification"
and ANSI T1.618.
CCITT Rec. Q.922, "PreDraft Standard" and the earlier March and
November versions.
CCITT Rec. Q.921.
Maximum Frame Size:
1600 Bytes (Ethernet/802.3)
4500 Bytes (Token Ring/802.5)
Management Interfaces:
Frame Relay Forum LMI
ANSI T1.617 Annex D
Null Management Interface. (PVCs must be statically configured.)
LMI Switch and ANSI T1.617 Annex D Switch. These interfaces are
included for test purposes.
CCITT Rec 933 Annex A (not yet supported)
Multicast Support:
Frame Relay Forum LMI Multicast Extension
Flow Control:
LMI XON/XOFF
DE Bit Setting:
The DE bit is never set.
Response to FECN/BECN:
Received FECNs and BECNs are counted. No action is taken to
avoid congestion.
Monitoring of Committed Information Rate (CIR):
None.
Linking Up with Frame Relay
HP Implementation—Summary
3-103