High speed links (HSL) meet the ANSI T1.111-1996 and Q.703/Annex A standards. Each HSL occupies a full (unchannelized) T1/E1 line and transfers data at the rate of 2.0 (1.544) Mbps.
Configuring high speed links in MTP uses two parameters, HS_LINK and HS_EXT_SEQ, which are contained in the Link section of the configuration file. The following table describes these parameters:
Parameter |
Description |
HS_LINK |
Setting this parameter to TRUE, notifies MTP that high speed links are in effect and automatically sets HS_EXT_SEQ to TRUE. Set HS_EXT_SEQ to FALSE for high speed links with normal sequence numbers. |
HS_EXT_SEQ |
Setting this parameter to TRUE, notifies MTP that extended sequence numbers are in effect and changes the size of:
Sequence numbers increase from 7 to 12 bits and the length indicator increases from 6 to 8 bits. Setting HS_EXT_SEQ to TRUE automatically sets HS_LINK to TRUE. Normal speed links with extended sequence numbers are not supported. |
A combination of high speed and normal speed links is not supported.
The following sample configuration file shows the configuration for high speed links:
#------------------------------------------------
# Link Parameters
#------------------------------------------------
LINK 0 # Link number specified in MTPMGR commands
PORT T1 # T<n> for T1/E1, R for remote
HS_LINK TRUE
HS_EXT_SEQ TRUE
LINK_SET 1
LINK_TYPE ANSI # ANSI / ITU / JNTT / JTTC
ADJACENT_DPC 1.1.2 # Board 2
LINK_SLC 0
LSSU_LEN 2
SSF NATIONAL # NATIONAL / INTERNATIONAL
END