FCX269, Virtual Network Device Activity Screen – VNIC

Performance Toolkit Subcommand: VNIC.

In the Virtual Network Device Activity Screen (FCX269), the lines for virtual network devices which have been active during the last measuring interval are highlighted on the screen.

Note that besides issuing the VNIC subcommand, this screen can also be reached from the TCP/IP menu by selecting Virtual Network Devices, or by selecting any row in the General Virtual Network Device Description Screen and pressing ENTER. (See FCX268, General Virtual Network Device Description Screen – GVNIC.)

If you select any row in this screen and press ENTER, you will go to the Extended Virtual Network Device Activity Screen for additional data. (See FCX270, Extended Virtual Network Device Activity Screen – EVNIC.)

Figure 1. Layout of Virtual Network Device Activity Screen (FCX269)


  FCX269      CPU nnnn  SER nnnnn  Interval HH:MM:SS - HH:MM:SS    Perf. Monitor
  
  ____ .                 .        .    .                     .      .      .      .      .      .     .     .     .     .     .     .
                                                        <--- Outbound/s ---> <--- Inbound/s ---->              <----- Locks/sec ---->
       <---  LAN ID  --> Adapter  Base Vswitch  V        Bytes <  Packets  >  Bytes <  Packets  > < Intrpts >  Lock LAN   TX    RX
  Addr Owner    Name     Owner    Addr Grpname  S L T B T_Byte T_Pack T_Disc R_Byte R_Pack R_Disc Out/s  In/s  Reqs Defer Defer Defer
  <<  -----------------   System (   2)  ----------  >>     72     .4     .0     53     .9     .5    .0    .2    .0    .0    .0    .0
  0000 SYSTEM   PEGIVL   SYSTEM   FFFD ........ X 2 Q      128     .8     .0     65    1.2    1.0    .0    .0    .0    .0    .0    .0
  1200 SYSTEM   GLOB1    TCPIP    1200 PGRP1    X 2 Q       15     .1     .0     40     .5     .0    .0    .5    .1    .0    .0    .0
  


  


  
  
 See EVNIC / GVNIC for other Virtual Network Device reports
 Command ===> _
 F1=Help  F4=Top  F5=Bot  F7=Bkwd  F8=Fwd  F12=Return

The information shown is based on CP monitor I/O domain SAMPLE data.

The sample shows a screen with virtual network devices sorted in ascending device number sequence (indicated by the underscore characters above the 'Addr' header). Other possible sort sequences are indicated by dots above the corresponding columns; they can be set using the 'SORT' subcommand with the string shown in the lowest line of the column heading as sort argument (see SORT) or by positioning the cursor on the header of the field which is to be sorted and then pressing ENTER. Note that the information extends beyond the 80 columns of an ordinary screen, use the LEFT/RIGHT subcommands, or the corresponding PF-keys, for shifting the display window so as to view the remaining data.

Addr

The virtual device number. The first line contains the string << System >> instead of a device number and owner identification. It shows the average load figures for all VNICs for which performance data were collected. The string << System >> also includes the total number of VNICs (in parentheses).

LAN ID

The VNIC LAN ID, consisting of two 8-byte character fields, OWNER and NAME.

Owner

The userid owning the adapter.

Base address

NIC base device address.

Group Name

Name of the link aggregation port group in use for this VSWITCH, when the device is a VSWITCH.

Vswitch indicator

X indicates that this network device is a VSWITCH.

L

The transport type used in the communication between the VNIC and CP. This is referred to as the session layer. 2 = Ethernet, 3 = IP.

T

Represents the type of the virtual NIC.

H: HiperSockets
Q: Queued direct I/O adapter (OSD)
N: QDIO with OSM CHPID (INMN)
E: QDIO with OSX CHPID (IEDN)
B: IQD bridge port (BRDG)
?: Unrecognized type

Note: INMN and IEDN are valid only on z/VM 6.1 with the PTF for VM64780 or higher. BRDG is valid only on z/VM 6.2 with the PTFs for VM65042 and PM46988 or higher.

B

Bridge port indicator. X indicates that this network device is connected to a logical LAN.

T_Byte

Bytes sent to OSA per second.

T_Pack

Packets sent to OSA per second.

T_Disc

Outbound packets discarded per second,

R_Byte

Bytes received from OSA per second.

R_Pack

Packets received from OSA per second.

R_Disc

Inbound packets discarded per second

Int out/s

Number of PCI (or AIF) events reflected for output queues per second.

Int in/s

Number of PCI (or AIF) events reflected for input queues per second.

Lock Requests

Number of lock requests made for the network lock, per second.

LAN Defer

Number of times per second that CP waited for the network lock.

TX Defer

Number of times per second that CP waited for any lock when sending data from this port.

RX Defer

Number of times per second that CP waited for any lock when receiving data on this port.

Effect of AVERAGE and INTERIM subcommands:

Overall or interim period averages will be shown for all activity fields.