CISCOSB-IPv6 :: rlipv6InterfaceLinkMTU

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCOSB-IPv6rlipv6InterfaceLinkMTU

rlipv6InterfaceLinkMTU

Module: CISCOSB-IPv6

OID (symbolic): CISCOSB-IPv6::rlipv6InterfaceLinkMTU

OID (numeric): 1.3.6.1.4.1.9.6.1.101.26.20.1.4

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-create

Description: The maximum transmission unit (MTU) size of IPv6 packets sent on an interface in bytes.

What is rlipv6InterfaceLinkMTU?

This read-create value sets the maximum transmission unit, in bytes, for IPv6 packets sent on an interface, ranging from 1280 up to 65535. An admin adjusts this to match the IPv6 MTU to the actual link capability, such as a tunnel with a lower MTU, to avoid excessive fragmentation. For example, setting this to 1400 on a tunnel interface accounts for the tunnel's encapsulation overhead so packets aren't dropped downstream.

OID Breakdown

Upper-level ancestors (11 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.6otherEnterprisesCISCO-SMI
1.3.6.1.4.1.9.6.1ciscoSBCISCO-SMI
1.3.6.1.4.1.9.6.1.101switch001CISCOSB-MIB
1.3.6.1.4.1.9.6.1.101.26ipSpecCISCOSB-IP
Numeric OIDNameModule
1.3.6.1.4.1.9.6.1.101.26.20rlipv6InterfaceTableCISCOSB-IPv6
1.3.6.1.4.1.9.6.1.101.26.20.1rlipv6InterfaceEntryCISCOSB-IPv6
1.3.6.1.4.1.9.6.1.101.26.20.1.4rlipv6InterfaceLinkMTUCISCOSB-IPv6