216
down down-count
: Specifies the number of successive OAM F5 Loopback cells not received before
the PVC goes down. The value range for the
down-count
argument is 1 to 600, and the default is 5.
retry retries
: Specifies the interval for sending retransmission detection cells before PVC state
change. The value range for the
retries
argument is 1 to 1000 seconds, and the default is 1 second.
Usage guidelines
After you enable OAM F5 Loopback cell transmission and retransmission detection on a PVC, the
PVC sends OAM F5 Loopback cells at the interval specified by the
interval
argument. If the PVC
receives no responses after a time period specified by the
retries
argument, it immediately sends
OAM F5 Loopback cells again.
The PVC state is updated during the OAM F5 Loopback cell transmission and retransmission
detection process.
•
If the PVC is down, it comes up when the number of successive OAM F5 Loopback cells
received reaches the value specified by the
up-count
argument.
•
If the PVC is up, it goes down when the number of successive OAM F5 Loopback cells not
received reaches the value specified by the
down-count
argument.
Examples
# Enable OAM F5 Loopback detection on P VC 1/32 of the interface ATM 2/4/0, and s et
the
interval
,
up-count
,
down-count
, and
retries
arguments to 12, 4, 4, and 1, respectively.
<Sysname> system-view
[Sysname] interface atm 2/4/0
[Sysname-ATM2/4/0] pvc 1/32
[Sysname-ATM2/4/0-pvc-1/32] oam loopback 12 up 4 down 4 retry 1
# Enable OAM F5 Loopback detection on PVC 1/33 of PVC-group 2, and set
the
interval
,
up-count
,
down-count
, and
retries
arguments to 12, 4, 3, and 2, respectively.
<Sysname> system-view
[Sysname] interface atm 2/4/0
[Sysname-ATM2/4/0] pvc-group 2
[Sysname-ATM2/4/0-pvc-group-2] pvc 1/33
[Sysname-ATM2/4/0-pvc-group-2-pvc-1/33] oam loopback 12 up 4 down 3 retry 2
oam ping
Use
oam ping
to send OAM F5 end-to-end cells through the specified PVC on the specified ATM
interface to check the link state.
Syntax
oam
ping interface interface-type
{
interface-number
|
interface-number.subnumber
}
pvc
{
pvc-name
|
vpi/vci
} [
number
timeout
]
Views
Any view
Predefined user roles
network-admin
Parameters
interface interface-type
{
interface-number
|
interface-number.subnumber
}: Specifies an interface
by its type and number. Both ATM interfaces and ATM subinterfaces are supported.
pvc
: Sends OAM F5 end-to-end cells through the specified PVC.
Summary of Contents for MSR810
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Page 331: ...319 Related commands timer hold...
