All MIBs › ERI-DNX-APS-MIB › apsLineRxK1Byte
apsLineRxK1Byte
Module: ERI-DNX-APS-MIB
OID (symbolic): ERI-DNX-APS-MIB::apsLineRxK1Byte
OID (numeric): 1.3.6.1.4.1.644.2.4.1.12.2.2.1.8
Node type: OBJECT-TYPE
Type: OneByteField
Access: read-only
Description: Displays the SONET K1 byte APS protocol field. Bits are numbered from left to right.
Bits 1-4 of the K1 byte indicate a request.
1111 Lockout of Protection 1110 Forced Switch 1101 SF - High Priority 1100 SF - Low Priority 1011 SD - High Priority 1010 SD - Low Priority 1001 not used 1000 Manual Switch 0111 not used 0110 Wait-to-Restore 0101 not used 0100 Exercise 0011 not used 0010 Reverse Request 0001 Do Not Revert 0000 No Request
Bits 5-8 of the K1 byte indicate the channel associated with the request defined in bits 1-4.
0000 is the Null channel. 1-14 are working channels. 15 is the extra traffic channel
What is apsLineRxK1Byte?
This read-only value reports the raw SONET K1 byte received on this APS line, where bits 1-4 encode the type of protection-switch request (e.g. 1101=SF-High-Priority, 0110=Wait-to-Restore) and bits 5-8 encode which channel the request applies to. An admin decodes this byte when diagnosing why an APS switch did or didn't happen, since it is the actual protocol message driving the protection logic rather than a locally derived status. For example, a K1 value with bits 1-4 = 1100 indicates the far end is signaling a low-priority Signal Failure request on the channel named in bits 5-8.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.644.2.4.1.12.2.2.1.8 snmpwalk -v2c -c public <target> ERI-DNX-APS-MIB::apsLineRxK1Byte
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.644.2.4.1.12.2.2.1.8.1 snmpget -v2c -c public <target> ERI-DNX-APS-MIB::apsLineRxK1Byte.1
Start monitoring Eastern Research Inc. DNX digital cross-connect system (Automatic Protection Switching) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ERI-DNX-APS-MIB::apsLineRxK1Byte OID value, configure state conditions and alerts, and monitor any Eastern Research Inc. DNX digital cross-connect system (Automatic Protection Switching) from a single console.
OID Breakdown
Upper-level ancestors (11 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.644 | eriEnterpriseRoot | ERI-ROOT-SMI |
| 1.3.6.1.4.1.644.2 | eriProducts | ERI-ROOT-SMI |
| 1.3.6.1.4.1.644.2.4 | dnx | ERI-DNX-SMC-MIB |
| 1.3.6.1.4.1.644.2.4.1 | sysMgr | ERI-DNX-SMC-MIB |
| 1.3.6.1.4.1.644.2.4.1.12 | utilities | ERI-DNX-SMC-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.644.2.4.1.12.2 | dnxAPS | ERI-DNX-APS-MIB |
| 1.3.6.1.4.1.644.2.4.1.12.2.2 | apsStatusTable | ERI-DNX-APS-MIB |
| 1.3.6.1.4.1.644.2.4.1.12.2.2.1 | apsStatusEntry | ERI-DNX-APS-MIB |
| 1.3.6.1.4.1.644.2.4.1.12.2.2.1.8 | apsLineRxK1Byte | ERI-DNX-APS-MIB |