Index |
The unique interface index of the e3/ds3 interface. |
Type |
The e3 physical interface type
off(1) interface is switched offline and the
line interface unit is switched off.
e3-unframed(2) Synchronous 34.368 MBit/s fullduplex,
with HDB3 line coding.
ds3-unframed(3) Synchronous 44.736 MBit/s fullduplex,
with B3ZS line coding.
sts1-unframed(4) Synchronous 51.840 MBit/s fullduplex,
with B3ZS line coding.
Enumerations: - off (1)
- e3-unframed (2)
- ds3-unframed (3)
- sts1-unframed (4)
|
Clock |
The clock source of the E3/DS3 connection.
intern(1) Your router provides the master clock
of the E3/DS3 connection.
extern(2) Your telephone company or the remote
DSU provides the master clock of the
E3/DS3 connection.
extern-preferred(3) The same like 'extern'. Enumerations: - intern (1)
- extern (2)
- extern-preferred (3)
|
L2Mode |
The X.75 layer 2 mode. This value has influence on the
HDLC address field (first byte of a HDCL frame). When
configured as DTE the address in a command frame is
0x01, when configured as DCE it is 0x03. For
response frames it is vice versa. When configured as
AUTO, layer 2 is set according to the e3IfClock setting.
dte(1) HDLC address 0x01
dce(2) HDLC address 0x03
auto(3) = DCE if e3IfClock is set to intern,
= DTE otherwise
Enumerations: |
TestPattern |
This variable configures which test pattern should be
transmitted.
normal(1) normal data, no test pattern is transmitted.
ones(2) Transmit unframed all ones.
alt-0-1(3) Transmit unframed 101010... pattern in
E3 mode and transmit AIS in DS3 mode.
prbs(4) Transmit PRBS pattern per ITU O.151.
In E3 mode 2^23 -1 PRBS pattern is used.
In DS3 mode 2^15 -1 PRBS pattern is used.
Enumerations: - normal (1)
- ones (2)
- alt-0-1 (3)
- prbs (4)
|
Loopback |
This variable represents the loopback configuration
of the E3/DS3 interface.
noloop(1) No loopback is configured, normal data
is transmitted and received.
remoteloop(2) The received data is transmitted again.
Receiving works normal.
localloop(3) The transmitted data is received
Transmitting works normal. Enumerations: - noloop (1)
- remoteloop (2)
- localloop (3)
|
Bundle |
Index of the bundle to aggregate the interface and
channels of other interfaces
to one interface. |
CableLength |
'short' should be used for a cable lenght less then 225 feet.
'long' should be used otherwise. With 'short' the Tx signal is
preattenutated similar to the attenuation of 225 feet
coaxial cable. The setting has no effect in E3 mode Enumerations: |
CRCMode |
The type of CRC checksum of the HDLC frames.
crc16(1) 16 Bit CRC
crc32(2) 32 Bit CRC Enumerations: |
L1State |
The e3 physical layer state
down(1) physical layer is inactive
up(2) physical layer is active
prbs(3) physical layer is active, a PRBS signal
is detected
nolicense(4) a license must be configured to activate
the interface. Enumerations: - down (1)
- up (2)
- prbs (3)
- nolicense (4)
|
RxPackets |
Count of received valid HDLC Frames. |
RxOctets |
Count of received bytes. |
TxPackets |
Count of transmitted valid HDLC Frames. |
TxOctets |
Count of transmitted bytes. |
RxResets |
Count of receiver resets. Under rare circumstances it
might be necessary to reset the receiver to work
properly. |
RxAborts |
Count of receiver aborts. The sender of a frame can
indicate a frame as aborted with a special Abort
sequence. |
RxOverruns |
Count of receiver overruns. If the e3 port is unable
to grant sufficiently soon/often the bus, the
RxFIFO may fill up. This leads to loss of data. |
RxCRCErrors |
Count of corrupted frames. Errors due to interference
on the e3 cable. |
RxGiantFrames |
Count of received frames with illegal framesize. This
can occur if a frame delimiter is destroyed. |
TxResets |
Count of transmitter resets. Under rare circumstances
it might be necessary to reset the transmitter to work
properly. |
TxAborts |
Count of transmitter aborts. While sending a frame it
might be necessary to indicate this frame as aborted. In
this case the receiver regards this frame as illegal. |
TxUnderruns |
Count of transmitter underruns. The e3 data for the
e3 port is supplied too slowly. |
TxGiantFrames |
Count of transmitted frames with illegal
framesize. This can occur if an upper module creates
packets with more than the maximum allowed packet size. |