All MIBs › ZYXEL-VLAN-STACK-MIB › zyVlanStackTunnelPortTpid
zyVlanStackTunnelPortTpid
Module: ZYXEL-VLAN-STACK-MIB
OID (symbolic): ZYXEL-VLAN-STACK-MIB::zyVlanStackTunnelPortTpid
OID (numeric): 1.3.6.1.4.1.890.1.15.3.89.1.2.1.4
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-write
Description: TPID is a standard Ethernet type code identifying the frame and indicates whether the frame carries IEEE 802.1Q tag information. Set a four-digit hexadecimal number from 0000 to FFFF that the switch adds in the outer VLAN tag of the frames sent on the tunnel port(s). The switch also uses this to check if the received frames are double-tagged. The value of this field is 0x8100 as defined in IEEE 802.1Q. If the switch needs to communicate with other vendors' devices, they should use the same TPID.
What is zyVlanStackTunnelPortTpid?
This INTEGER sets the four-digit hex Tag Protocol Identifier the switch writes into the outer VLAN tag on tunnel port(s), and is also used to recognize incoming double-tagged frames; the IEEE 802.1Q-defined value is 0x8100. Admins change this from the default only when interoperating with another vendor's equipment that expects a nonstandard TPID for its outer tag. For example, leaving zyVlanStackTunnelPortTpid at 0x8100 ensures compatibility with standard 802.1Q gear, while setting it to a vendor-specific value like 0x9100 matches equipment using that alternate TPID.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.890.1.15.3.89.1.2.1.4 snmpwalk -v2c -c public <target> ZYXEL-VLAN-STACK-MIB::zyVlanStackTunnelPortTpid
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.890.1.15.3.89.1.2.1.4.1 snmpget -v2c -c public <target> ZYXEL-VLAN-STACK-MIB::zyVlanStackTunnelPortTpid.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.890.1.15.3.89.1.2.1.4.1 i <value>
Start monitoring ZyXEL managed Ethernet switch (Q-in-Q per-port stacking-mode/outer-VLAN-tag config status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ZYXEL-VLAN-STACK-MIB::zyVlanStackTunnelPortTpid OID value, configure state conditions and alerts, and monitor any ZyXEL managed Ethernet switch (Q-in-Q per-port stacking-mode/outer-VLAN-tag config status) from a single console.
OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.890 | zyxel | IES5206-MIB |
| 1.3.6.1.4.1.890.1 | products | IES5206-MIB |
| 1.3.6.1.4.1.890.1.15 | nwa1100nh | NWA1100-NH |
| 1.3.6.1.4.1.890.1.15.3 | esMgmt | NWA1100-NH |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.890.1.15.3.89 | zyxelVlanStack | ZYXEL-VLAN-STACK-MIB |
| 1.3.6.1.4.1.890.1.15.3.89.1 | zyxelVlanStackSetup | ZYXEL-VLAN-STACK-MIB |
| 1.3.6.1.4.1.890.1.15.3.89.1.2 | zyxelVlanStackPortTable | ZYXEL-VLAN-STACK-MIB |
| 1.3.6.1.4.1.890.1.15.3.89.1.2.1 | zyxelVlanStackPortEntry | ZYXEL-VLAN-STACK-MIB |
| 1.3.6.1.4.1.890.1.15.3.89.1.2.1.4 | zyVlanStackTunnelPortTpid | ZYXEL-VLAN-STACK-MIB |