Interface Configuration
7710 SR OS Interface Configuration Guide
Page 291
config>port>tdm>ds1>channel-group>cisco-hdlc
config>port>tdm>ds3>cisco-hdlc
config>port>tdm>e1>channel-group>cisco-hdlc
config>port>tdm>e3>cisco-hdlc
Description
This command configures the number of keepalive intervals that must pass without receiving a keepalive
packet before the link is declared down. It is expected that the nodes at the two endpoints of the cHDLC link
are provisioned with the same values.
Default
3
down-count —
Specifies the number of keep alive intervals that must pass without receiving a keep alive
packet before the link is declared down.
Values
3 — 16
encap-type
Syntax
encap-type
{
atm
|
bcp-null
|
bcp-dot1q
|
ipcp
|
ppp-auto
|
frame-relay
|
wan-mirror |cisco-
hdlc| cem
}
Context
config>port>tdm>ds1>channel-group
config>port>tdm>ds3
config>port>tdm>e1>channel-group
config>port>tdm>e3
Description
This command configures the encapsulation method used to on the specified port, path, or channel. This
parameter can be set on both access and network ports.
When the
encap-type
is set to ATM the CRC, timeslots, scrambling (if applicable), and idle-cycle-flags are
set to ATM defaults respectively. When the encap-type is changed from ATM, those parameters are set to
their non-ATM defaults.
When the
encap-type
is ATM, ATM sub-layer verification (GR-1248-CORE,
Generic Requirements for
Operations of ATM Network Elements (NEs)
) is automatically enabled. When ATM PLCP cell mapping is
used, the results of this verification include:
• PLCP Severely Errored Framing Seconds
• PLCP Alarm State
• PLCP Unavailable Seconds Counter
When ATM direct cell mapping is used, the result of the verification includes:
• Out of Cell Delineation (OCD) event count. The OCD event count is described in RFC 2515,
Defini-
tions of Managed Objects for ATM Management
. Note that multiple events occurring within a second
will be counted as 1 event for ASAP MDAs as a result of a hardware limit.
• Loss of Cell Delineation defect/alarm. The LCD defect/alarm is defined in RFC 2515,
Definitions of
Managed Objects for ATM Management
. When a path is in an LCD defect state, the path’s operational
status will be down. When a path exits the LCD state, the path’s operational status will change to up
(assuming nothing else causes the path to stay down). A trap is raised to indicate the LCD status change.
Also, a P-RDI is sent to indicate the defect to the remote end.
Содержание 7710 SR SONET
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Страница 8: ...Page 8 7710 SR OS Interface Configuration Guide List of Tables...
Страница 10: ...Page 10 7710 SR OS Interface Configuration Guide List of Figures...
Страница 14: ...Preface Page 14 7710 SR OS Interface Configuration Guide...
Страница 16: ...Getting Started Page 16 7710 SR OS Interface Configuration Guide...
Страница 18: ...Page 18 7710 SR OS Interface Configuration Guide Configuration Notes on page 107...
Страница 166: ...Service Management Tasks Page 152 7710 SR OS Interface Configuration Guide...
Страница 354: ...Multi Chassis Redundancy Commands Page 328 7710 SR OS Interface Configuration Guide...
Страница 494: ...Standards and Protocols Page 494 Standards and Protocols...
Страница 496: ...Index Page 496 7710 SR OS Interface Configuration Guide...