2 pdh vcat/lcas, 6 encapsulation, 1 gfp-f encapsulation (per itu-t g.7041) – Rainbow Electronics DS33M33 User Manual

Page 15: 2 hdlc encapsulation, 3 chdlc encapsulation, 4 x.86 encapsulation support, 7 ethernet feature overview, Pdh vcat/lcas, Ncapsulation, Gfp-f encapsulation (per itu-t g.7041)

___________________________________________________ DS33M30/M31/M33 ABRIDGED DATA SHEET

Rev: 111908

15 of 20

1.5.2 PDH VCAT/LCAS

• Supports up to three DS3/E3 in one VCG (per ITU-T G.7043/G.7042)

• Supports differential delay compensation up to 200ms

1.6 Encapsulation

• Up to three encap/decap engines for various port configurations

1.6.1 GFP-F Encapsulation (per ITU-T G.7041)

• GFP-F idle frame insertion and extraction

• Null header support

• cHEC-based frame delineation

• X

+1 payload scrambling and descrambling

• Barker sequence scrambling and descrambling

• Supports CSF frame handling

• CRC-32 generation and verification

1.6.2 HDLC Encapsulation

• Programmable 16/32-bit FCS insertion/extraction

• Support for bit and byte stuffed operation

• Programmable address/control/PID fields

• Self-synchronizing X

+1 packet scrambling

• Valid and invalid frame counters

• Programmable inter-frame fill

• Frame filtering of FCS errors

• cHDLC support with SLARP extraction

1.6.3 cHDLC Encapsulation

• Bit stuffing with address/control/PID/FCS fields

• Programmable interframe fill length

• Transparency processing

• Counters: number of received valid frames and erred frames

• Incoming frame discard due to FCS error, abort, or frame length longer than preset max

• Default maximum frame length is associated with the maximum PDU length of MAC frame

• Extract SLARP for external processor interpretation

1.6.4 X.86 Encapsulation Support

• Transmit Transparency Processing

• Receive rate adaptation removal

• Selectable X

+1 packet scrambling

• Valid and Invalid Frame counters

• Frame filtering of FCS errors

1.7 Ethernet Feature Overview

• Supports Single 10/100/1000Mbps Ethernet interfaces (Half or Full Duplex)

• WAN Packet field modifications (Header and FCS)

• Byte stuffed HDLC or GFP (Null or Linear) for any valid BW and VCG size

• Ethernet Frame modifications (Remove 14/18, VLAN/Q-in-Q and Ethernet FCS)

• LAN Frame Inspection for VLAN (Forwarding, Discarding, Extract), Extract, Priority Coding

• WAN Frame Inspection for VLAN (Forwarding, Extract), Extract

• Scheduler with options of strict priority or WRR

• Up to 200ms of differential delay using external DDR SDRAM

• Bridge Filtering for 10/100Mbps applications

• Policing based on per-port, per-COS, or per-multicast/broadcast type