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Routing Protocols

  • Support for ICMP extension (QFX5100)—Starting in Junos OS Evolved Release 21.4R1, for both numbered and unnumbered aggregated Ethernet interfaces, we’ve implemented RFC5837 to enable us to append additional fields to the following ICMP (IPv4 and IPv6) messages:

    • ICMPv4 Time Exceeded

    • ICMPv4 Destination Unreachable

    • ICMPv6 Time Exceeded

    • ICMPv6 Destination Unreachable

    Use the set system allow-icmp4-extension command to enable ICMP extension.

    [See Configure ICMP Features.]