Lines Matching full:packet
20 packet with a TTL of 1. Upon routing the packet the device must send it to the
26 is called "packet trapping".
32 supported packet traps with ``devlink`` and report trapped packets to
36 bytes accounting and potentially report the packet to user space via a netlink
39 as it allows users to obtain further visibility into packet drops that would
44 Netlink event: Packet w/ metadata
76 | Trapped packet
89 The ``devlink-trap`` mechanism supports the following packet trap types:
112 The ``devlink-trap`` mechanism supports the following packet trap actions:
114 * ``trap``: The sole copy of the packet is sent to the CPU.
115 * ``drop``: The packet is dropped by the underlying device and a copy is not
117 * ``mirror``: The packet is forwarded by the underlying device and a copy is
120 Generic Packet Traps
123 Generic packet traps are used to describe traps that trap well-defined packets
128 .. list-table:: List of Generic Packet Traps
142 the packet is untagged or prio-tagged
243 failure during decapsulation (e.g., packet being too short, reserved
415 might be because of packet truncation or the I flag is not set.
422 include unexpected packet truncation.
439 This packet trap could include packets which do not pass an IP checksum
441 from packet truncation thus the total length field exceeds the received
442 packet length etc
454 This packet trap could include checksum errorrs, an improper UDP
480 Driver-specific Packet Traps
483 Device drivers can register driver-specific packet traps, but these must be
485 help debug packet drops caused by these exceptions. The following list includes
492 .. _Generic-Packet-Trap-Groups:
494 Generic Packet Trap Groups
497 Generic packet trap groups are used to aggregate logically related packet
503 .. list-table:: List of Generic Packet Trap Groups
509 - Contains packet traps for packets that were dropped by the device during
512 - Contains packet traps for packets that were dropped by the device during
515 - Contains packet traps for packets that hit an exception (e.g., TTL
518 - Contains packet traps for packets that were dropped by the device due to
521 - Contains packet traps for packets that were dropped by the device during
524 - Contains packet traps for packets that were dropped by the device during
527 - Contains packet traps for STP packets
529 - Contains packet traps for LACP packets
531 - Contains packet traps for LLDP packets
533 - Contains packet traps for IGMP and MLD packets required for multicast
536 - Contains packet traps for DHCP packets
538 - Contains packet traps for neighbour discovery packets (e.g., ARP, IPv6
541 - Contains packet traps for BFD packets
543 - Contains packet traps for OSPF packets
545 - Contains packet traps for BGP packets
547 - Contains packet traps for VRRP packets
549 - Contains packet traps for PIM packets
551 - Contains a packet trap for unicast loopback packets (i.e.,
554 the CPU usage, a packet trap policer with a low rate can be bound to the
557 - Contains packet traps for packets that should be locally delivered after
558 routing, but do not match more specific packet traps (e.g.,
561 - Contains packet traps for packets that should be routed through an
565 - Contains packet traps for various IPv6 control packets (e.g., Router
568 - Contains packet traps for PTP time-critical event messages (Sync,
571 - Contains packet traps for PTP general messages (Announce, Follow_Up,
574 - Contains packet traps for packets that were sampled by the device during
577 - Contains packet traps for packets that were trapped (logged) by the
580 - Contains packet traps for packets that were marked by the device during
583 Packet Trap Policers
588 packet rates that are several orders of magnitude higher compared to those that
592 devices usually include packet trap policers that are able to police the
596 supported packet trap policers with ``devlink``. The device driver can choose
597 to associate these policers with supported packet trap groups (see
598 :ref:`Generic-Packet-Trap-Groups`) during its initialization, thereby exposing
617 as the triggering of supported packet traps.