H3C Technologies H3C S7500E Series Switches - Manual (Page 110)

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To do… Use the command... Remarks
Enable route pinning mpls te route-pinning
Required
Disabled by default
Submit current tunnel
configuration
mpls te commit Required.
Configuring administrative group and affinity attribute
The affinity attribute of an MPLS TE tunnel identifies the properties of the links that the tunnel can use.
Together with the link administrative group, it decides which links the MPLS TE tunnel can use. This is
done by ANDing the 32-bit affinity attribute with the 32-bit link administrative group attribute. When
doing that, a 32-bit mask is used. The affinity bits corresponding to the 1s in the mask are “do care”
bits which must be considered while those corresponding to the 0s in the mask are “don’t care” bits.
For a link to be used by a TE tunnel, at least one considered affinity bit and its corresponding
administrative group bit must be set to 1.
Suppose the affinity of an MPLS TE tunnel is 0xFFFFFFFF and the mask is 0x0000FFFF. For a link to
be used by the tunnel, the leftmost 16 bits of its administrative group attribute can be 0s or 1s, but at
least one of the rest bits must be 1.
The affinity of an MPLS TE tunnel is configured at the first node on the tunnel and then signaled to the
rest nodes through RSVP-TE.
The associations between administrative groups and affinities may vary by vendor.
Follow these steps to configure the administrative group and affinity attribute:
To do… Use the command... Remarks
Enter system view system-view ––
Enter interface view of MPLS TE
link
interface interface-type
interface-number
––
Assign the link to a link
administrative group
mpls te link administrative
group value
Optional
The default is 0x00000000.
Exit to system view quit ––
Enter MPLS TE tunnel interface
view
interface tunnel tunnel-number ––