PM7311 pmc-sierra, PM7311 Datasheet - Page 21

• Manufacturer Part Number: PM7311
• Description: Freedm 84a1024l Assp Telecom Standard Datasheet
• Manufacturer: pmc-sierra

Proprietary and Confidential to PMC-Sierra, Inc., and for its customers’ internal use.
Document No.: PMC-2021832, Issue 2
2.4
Frame Relay Features
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o Supports 42 bundles in ingress direction. These bundles are composed of independent
o Supports 42 bundles in egress direction. These bundles are composed of independent
o Support for fragmentation on a single HDLC channel.
o Support for 16 COS levels in accordance with RFC 2686.
o Support for up to 100ms of intra bundle skew in the receive direction when supporting
o Up to 12 member links per bundle.
Link layer address lookup can be performed based on HDLC or Any-PHY channel and DLCI
for HDLC channels supporting Frame Relay protocols.
Capable of supporting line rate transfers of frame sizes from 40 to 9.6K bytes.
FRF.16 Multi-link FR bundles and FRF.12 UNI, NNI or End-to-End fragmentation:
o Capable of supporting fragment sizes from 4 to 9.6K bytes with the restriction that the
o 10-bit DLCI format supported for channels operating in Frame Relay mode. Alternative
o The lookup algorithm can support a maximum of 16K connection identifiers (CIs)
o FRF.16 Control Frames (Link Integrity Protocol) are identified and forwarded to the Any-
o Support for 3 egress fragmentation sizes (128, 256, and 512 bytes) configurable per
o 12 bit sequence numbers supported.
o Support for fragmentation on a single HDLC channel. (Note – End-to-End fragmentation
o 42 bundles in ingress direction. These bundles are composed of independent HDLC
o 42 bundles in egress direction. These bundles are composed of independent HDLC
o Support for up to 100ms intra-bundle skew within the limits of 12-bit sequence number
o Up to 12 member links per bundle.
HDLC channels.
HDLC channels.
the minimum fragment size. Capable of supporting larger skews (<400ms) with larger
fragment sizes. The intra-bundle skew is limited by 12 bit sequence number capabilities.
maximum number of fragments per packet is 81.
DLCI formats supported when the lookup is based on HDLC channel only.
amongst all channels in use.
PHY interface
connection. Optionally, full packet transfers are supported on a per connection basis.
is only supported on single HDLC channels, not multilink bundles.)
channels.
channels.
capabilities when supporting the minimum fragment size. Capable of supporting larger
skews (<400ms) with larger fragment sizes.
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Each member link is required to operate at the same speed. Either T1/J1 or E1
rates.
Each member link operates at the same speed either T1/J1 or E1.
FECN, BECN, and DE ingress processing as per FRF.12. The C/R value passed
out in frame out mode is the value received on the Begin fragment.
FREEDM 84A1024L ASSP Telecom Standard Product Data Sheet
Released
21