Deleting Filter-Based Monitors; Isl Performance Monitoring; Predefined Values At Offset 0 - HP A7533A - Brocade 4Gb SAN Switch Base Administrator's Manual

You can specify up to four values to compare against each offset. If more than one offset is required to
properly define a filter, the bytes found at each offset must match one of the given values for the filter to
increment its counter. If one or more of the given offsets does not match any of the given values, the counter
does not increment. The value of the offset must be between 0 and 63, in decimal format. Byte 0 indicates
the first byte of the Start of Frame (SOF), byte 4 is the first byte of the frame header, and byte 28 is the first
byte of the payload. Thus only the SOF, frame header, and first 36 bytes of payload can be selected as
part of a filter definition. Offset 0 is a special case, which can be used to monitor the first 4 bytes of the
frame (SOF). When the offset is set to 0, the values 0–7 that are checked against that offset are predefined
as shown in Table
Table 75

Predefined values at offset 0

Value
0
1
2
3
If the switch does not have enough resources to create a given filter, then other filters might have to be
deleted to free resources.
The following example adds filter-based monitors:
switch:admin> perfaddusermonitor 4/2, "12, 0xff, 0x05, 0x08; 9, 0xff,
0x02" "FCP/IP"
User monitor #5 added
switch:admin> perfaddusermonitor 1/2, "0, 0xff, 6"
User Monitor #6 added
Two filter-based monitors are added. The first monitor (#5) counts all FCP and IP frames transmitted from
domain 0x02 for slot 4, port 2. The FCP and IP protocols are selected by monitoring offset 12, mask 0xff
and matching values of 0x05 or 0x08. Domain 2 is selected by monitoring offset 9, mask 0xff, and
matching a value of 0x02. The monitor counter is incremented for all outgoing frames from port 2 where
byte 9 is 0x02 and byte 12 is 0x05 or 0x08.
The second monitor (#6) is for SOFi3 on slot 1, port 2.

Deleting filter-based monitors

To delete a filter-based monitor:
1. Enter the perfDelFilterMonitor command to delete a specific monitor.
2. If you do not specify which monitor number to delete, you are prompted if you want to delete all entries.
The following example deletes monitor number 1 on slot 1, port 4 using the perfDelFilterMonitor
command:
switch:admin> perfdelfiltermonitor 1/4, 1
The specified filter-based monitor is deleted.

ISL performance monitoring

ISL monitoring is set up on E_Ports automatically in release 4.4.0 and later.
An ISL monitor measures traffic to all reachable destination domains for an ISL, showing which destination
domain is consuming the most traffic. If there are more than 16 domains, the monitor samples traffic and
extrapolates the measurement.
EE monitors on E_Ports are deleted when they become part of an ISL.
75.
SOF Value
SOFf 4
SOFc1 5
SOFi1 6
SOFn1 7
SOF
SOFi2
SOFn2
SOFi3
SOFn3
Fabric OS 6.1.x administrator guide 337