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Network Management and Monitoring

  • Remote port mirroring to IPv6 address (EX4650, EX4650-48Y-VC, QFX5120-32C, QFX5120-48T, QFX5120-48T-VC, QFX5120-48Y, QFX5120-48Y-VC, and QFX5120-48YM)—Starting in Junos OS Evolved Release 21.4R1, you can use remote port mirroring to copy packets entering or exiting a port or entering a VLAN and send the copies to the IPv6 address of a device running an analyzer application on a remote network (sometimes referred to as extended port mirroring). When you use remote port mirroring to an IPv6 address, the mirrored packets are GRE-encapsulated.

    Add the address you would like to have the copied packets sent to in the CLI hierarchy. For example, set forwarding-options analyzer ff output ip-address 2000::1.

    [See Understanding Port Mirroring and Analyzers.]

  • Support for port mirroring and analyzers with Layer 3 VXLAN gateway (QFX5210)—Starting in Junos OS Release 21.4R1, the QFX5210 supports port mirroring when used as a Layer 3 VXLAN gateway. However, the QFX5210 does not support true egress mirroring. Packet contents are different when you configure egress mirroring on the network port. Layer 2 fields in the mirrored packets are undefined, and you should not consider those fields for validation.

    [See Port Mirroring and Analyzers and Using a RIOT Loopback Port to Route Traffic in an EVPN-VXLAN Network.]