diff options
Diffstat (limited to 'Documentation/networking')
| -rw-r--r-- | Documentation/networking/bonding.txt | 59 | ||||
| -rw-r--r-- | Documentation/networking/pktgen.txt | 16 |
2 files changed, 75 insertions, 0 deletions
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index afac780445cd..dc942eaf490f 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -192,6 +192,17 @@ or, for backwards compatibility, the option value. E.g., arp_interval Specifies the ARP link monitoring frequency in milliseconds. + + The ARP monitor works by periodically checking the slave + devices to determine whether they have sent or received + traffic recently (the precise criteria depends upon the + bonding mode, and the state of the slave). Regular traffic is + generated via ARP probes issued for the addresses specified by + the arp_ip_target option. + + This behavior can be modified by the arp_validate option, + below. + If ARP monitoring is used in an etherchannel compatible mode (modes 0 and 2), the switch should be configured in a mode that evenly distributes packets across all links. If the @@ -213,6 +224,54 @@ arp_ip_target maximum number of targets that can be specified is 16. The default value is no IP addresses. +arp_validate + + Specifies whether or not ARP probes and replies should be + validated in the active-backup mode. This causes the ARP + monitor to examine the incoming ARP requests and replies, and + only consider a slave to be up if it is receiving the + appropriate ARP traffic. + + Possible values are: + + none or 0 + + No validation is performed. This is the default. + + active or 1 + + Validation is performed only for the active slave. + + backup or 2 + + Validation is performed only for backup slaves. + + all or 3 + + Validation is performed for all slaves. + + For the active slave, the validation checks ARP replies to + confirm that they were generated by an arp_ip_target. Since + backup slaves do not typically receive these replies, the + validation performed for backup slaves is on the ARP request + sent out via the active slave. It is possible that some + switch or network configurations may result in situations + wherein the backup slaves do not receive the ARP requests; in + such a situation, validation of backup slaves must be + disabled. + + This option is useful in network configurations in which + multiple bonding hosts are concurrently issuing ARPs to one or + more targets beyond a common switch. Should the link between + the switch and target fail (but not the switch itself), the + probe traffic generated by the multiple bonding instances will + fool the standard ARP monitor into considering the links as + still up. Use of the arp_validate option can resolve this, as + the ARP monitor will only consider ARP requests and replies + associated with its own instance of bonding. + + This option was added in bonding version 3.1.0. + downdelay Specifies the time, in milliseconds, to wait before disabling diff --git a/Documentation/networking/pktgen.txt b/Documentation/networking/pktgen.txt index 44f2f769e865..18d385c068fc 100644 --- a/Documentation/networking/pktgen.txt +++ b/Documentation/networking/pktgen.txt @@ -100,6 +100,7 @@ Examples: are: IPSRC_RND #IP Source is random (between min/max), IPDST_RND, UDPSRC_RND, UDPDST_RND, MACSRC_RND, MACDST_RND + MPLS_RND, VID_RND, SVID_RND pgset "udp_src_min 9" set UDP source port min, If < udp_src_max, then cycle through the port range. @@ -125,6 +126,21 @@ Examples: pgset "mpls 0" turn off mpls (or any invalid argument works too!) + pgset "vlan_id 77" set VLAN ID 0-4095 + pgset "vlan_p 3" set priority bit 0-7 (default 0) + pgset "vlan_cfi 0" set canonical format identifier 0-1 (default 0) + + pgset "svlan_id 22" set SVLAN ID 0-4095 + pgset "svlan_p 3" set priority bit 0-7 (default 0) + pgset "svlan_cfi 0" set canonical format identifier 0-1 (default 0) + + pgset "vlan_id 9999" > 4095 remove vlan and svlan tags + pgset "svlan 9999" > 4095 remove svlan tag + + + pgset "tos XX" set former IPv4 TOS field (e.g. "tos 28" for AF11 no ECN, default 00) + pgset "traffic_class XX" set former IPv6 TRAFFIC CLASS (e.g. "traffic_class B8" for EF no ECN, default 00) + pgset stop aborts injection. Also, ^C aborts generator. |
