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Routing Protocols

  • BGP link bandwidth community (cRPD, EX4100-48MP, EX4300-MP, EX4400-48MP, EX4650, EX9204, EX9208, MX240, MX480, MX960, MX10003, MX10004, MX10008, MX10016, MX2008, MX2010, and MX2020, cSRX, QFX5110, QFX5120-32C, QFX5120-48T, QFX5120-48Y, QFX5120-48YM, QFX5200, and QFX5210)—Starting in Junos OS Release 24.2R1,BGP can communicate link speeds to remote peers, enabling better optimization of traffic distribution for load balancing. A BGP group can send the link-bandwidth non-transitive extended community over an EBGP session for originated or received and readvertised link-bandwidth extended communities.

    To configure the non-transitive link bandwidth extended community, include the bandwidth-non-transitive:value in the export policy at the [edit policy-options community name members community-ids] hierarchy level.

    To enable the device to automatically detect and attach the link-bandwidth community on a route at import, include theauto-sense auto-sense statement at the [edit protocols bgp group link-bandwidth ] hierarchy level. This feature facilitates the integration of devices with different transmission speeds within the network, enabling efficient traffic distribution based on link speed.

    [See and group (Protocols BGP).]