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HP Auto Port Aggregation Administrator's Guide: HP-UX 11.0, 11i v1, 11i v2 > Chapter 5 Administering HP APA

Viewing HP APA Statistics

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The link aggregate software keeps a counter for each statistic defined in RFC 1213 MIB II for 32-bit statistics or RFC 2863 for 64-bit statistics. Each counter is set to the negative of the sum of all the physical ports in the link aggregate when it is created. When reporting the value of a statistic, the sum of all the physical ports corresponding statistic counter is added to the link aggregates counter.

For a detailed description of the statistics fields, see RFC 1213 for 32-bit statistics and RFC 2863 for 64-bit statistics.

When a physical port is removed from a link aggregate, each of its statistics is added to the corresponding link aggregate statistic. When a physical port is added to a link aggregate, its current statistics are subtracted from the link aggregates statistics.

NOTE: Cisco's Fast EtherChannel (FEC) packets are not counted in the link aggregate statistics. This is required because the FEC packets never traverse the link aggregate, they only traverse the port.

For the September 2004 release (B.11.23.05) and later of HP APA for HP-UX 11i v2 and the May 2005 release (B.11.11.20) and later of HP APA for HP-UX 11i v1, link aggregates support 64-bit statistics based on the following rules:

  • Aggregates support the 64-bit MIB (Management Information Base) if all the member links are capable of 64-bit statistics when the aggregate is created.

  • The 64-bit statistics capability will be downgraded to 32 bits if the aggregate membership changes to include one or more links that are not 64-bit MIB capable. After the aggregate's 64-bit MIB capability is downgraded, it will never be upgraded again for the life of the aggregate.

To display statistics, use the lanadmin -g linkAggPPA command. Example 5-1 shows 32-bit MIB statistics returned from this command.

Example 5-1 Sample Link Aggregate 32-Bit Statistics

# lanadmin -g 900

                 LAN INTERFACE STATUS DISPLAY
                  Fri, Jul 30, 2007  12:20:23

PPA Number                    = 900
Description                   = lan900 Hewlett-Packard LinkAggregate Interface
Type (value)                  = other(1)
MTU Size                      = 1500
Speed                         = 100 Mbps
Station Address               = 0x00306E5FF047
Administration Status (value) = up(1)
Operation Status (value)      = down(2)
Last Change                   = Thu Sep 28 18:35:11 2006
Inbound Octets                = 1353732
Inbound Unicast Packets       = 0
Inbound Non-Unicast Packets   = 22064
Inbound Discards              = 0
Inbound Errors                = 0
Inbound Unknown Protocols     = 22064
Outbound Octets               = 0
Outbound Unicast Packets      = 0
Outbound Non-Unicast Packets  = 0
Outbound Discards             = 0
Outbound Errors               = 0
Outbound Queue Length         = 0
Specific                      = 0

Example 5-2 shows 64-bit MIB statistics.

Example 5-2 Sample Link Aggregate 64-Bit Statistics

# lanadmin -g mibstats_ext 900

                 LAN INTERFACE STATUS DISPLAY
                  Fri, Jul 30, 2007  12:20:23

Interface Name               = lan900
PPA Number                   = 900
Description                  = lan900 Hewlett-Packard LinkAggregate Interface
Interface Type(value)        = other(1)
MTU Size                     = 1500
Speed                        = 3 Gbps
Station Address              = 0x0012794371B4
Administration Status        = up
Operation Status             = down
Last Change                  = Thu Sep 28 18:35:11 2006
Inbound Octets               = 1353732
Inbound Unicast Packets      = 0
Inbound Multicast Packets    = 0
Inbound Broadcast Packets    = 0
Inbound Discards             = 0
Inbound Errors               = 0
Inbound Unknown Protocols    = 22064
Outbound Octets              = 0
Outbound Unicast Packets     = 0
Outbound Multicast Packets   = 0
Outbound Broadcast Packets   = 0
Outbound Discards            = 0
Outbound Errors              = 0
Counter Discontinuity Time   = Thu Sep 28 18:35:10 2006
Physical Promiscuous Mode    = invalid
Physical Connector Present   = false
Interface Alias              =
Link Up/Down Trap Enable     = enabled
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