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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure NIDBK Network Interface Device Block.
0000 0 Character 8 NIDDESC NID Description (e.g. IQDC)
0008 8 Address 4 NIDVDEV HL pointer to VDEV
000C 12 Address 4 NIDNICBK HL pointer to NICBK
0010 16 Address 4 NIDFPNT HL pointer to NEXT NIDBK
0014 20 Address 4 NIDBPNT HL pointer to PREV NIDBK
0018 24 Bitstring 1 NIDTYPE Network Device Type
0019 25 Bitstring 1 NIDGWFCN NIC device function
00000000 NIDNOFCN 0 NIDNOFCN Unassigned
00000001 NIDCTLRD 1 NIDCTLRD CTL-0 / CTL-READ
00000002 NIDCTLWR 2 NIDCTLWR CTL-1 / CTL-WRITE
00000003 NIDDATA 3 NIDDATA DATA device
001A 26 Signed 2 NIDGWDEV (0) NIC device index (0-xxxx)
001A 26 Bitstring 1 NIDUA0 Unit Address (byte 0)
001B 27 Bitstring 1 NIDUA Unit Address
001C 28 Bitstring 4 NIDSTSWD (0) Status Word (summary for trace)
001C 28 Bitstring 1 NIDLATCH Device Latches
1... .... NIDBUSY X'80' NIDBUSY - Busy with a CCW
.1.. .... NIDNTRDY X'40' NIDNTRDY - Device is
NOTREADY
..1. .... NIDCCW1 X'20' NIDCCW1 - This is
First/Only CCW
...1 .... NIDCCFLG X'10' NIDCCFLG - Command Chaining
in effect
.... 1... NIDNEWUC X'08' NIDNEWUC - Last CCW caused
UC
.... .1.. NIDRSEVT X'04' NIDRSEVT - Resetting-Event
Latch Notes : NIDGWSTS is
serialized by NIDSPNLK.
001D 29 Bitstring 1 NIDGWSTS Gateway Status
1... .... NIDMSPND X'80' NIDMSPND - Message pending
from GW
.1.. .... NIDRDPND X'40' NIDRDPND - Read pending
from VM
..1. .... NIDRDACT X'20' NIDRDACT - Read active from
VM
...1 .... NIDWRACT X'10' NIDWRACT - Write active
from VM
.... 1... NIDXDACT X'08' NIDXDACT - QDIO exchange is
active Notes : NIDCNTRL is
serialized by NIDSPNLK.
001E 30 Bitstring 1 NIDCNTRL Control options
1... .... NIDSUSPD X'80' NIDSUSPD - Device is
SUSPENDED
.1.. .... NIDSCHED X'40' NIDSCHED - RESUME is
Scheduled
..1. .... NIDUIPND X'20' NIDUIPND - Unsolicited Int
Pending
...1 .... NIDRESET X'10' NIDRESET - Reset in
Progress
.... 1... NIDDET X'08' NIDDET - DETACH in Progress
001F 31 Bitstring 1 NIDUISTS Pending Unsolicited Status
0020 32 Bitstring 1 NIDCMD Current CCW opcode
0021 33 Bitstring 1 NIDDVPST Posted Unit Status
0022 34 Bitstring 1 NIDDVSTS Latest Unit Status
0023 35 Bitstring 1 NIDTRFLG Extended Trace Flags
1... .... NIDTRCCW X'80' NIDTRCCW - Trace CCW Data
Buffer
.1.. .... NIDTRXFR X'40' NIDTRXFR - Trace Data
Transfers
0024 36 Bitstring 2 NIDSNS (0) Sense Data registers
0024 36 Bitstring 1 NIDSNS0 Sense Byte 0 latches
1... .... NIDCMREJ X'80' NIDCMREJ - Command Reject
.1.. .... NIDINTRQ X'40' NIDINTRQ - Intervention
Reqd
..1. .... NIDBUSCK X'20' NIDBUSCK - Bus-Out Check
...1 .... NIDEQCHK X'10' NIDEQCHK - Equipment Check
.... 1... NIDCDC X'08' NIDCDC - Channel Data Check
.... .1.. NIDCCC X'04' NIDCCC - Channel Control
Check
.... ..1. NIDIFCC X'02' NIDIFCC - Interface Control
Check
.... ...1 NIDCANCL X'01' NIDCANCL - Cancel Function
0025 37 Bitstring 1 NIDSNS1 Sense Byte 1 latches
1... .... NIDRJRES X'80' NIDRJRES - Rejected by
Resetting-Event
0026 38 Bitstring 1 NIDPVCMD Previous CCW opcode
0027 39 Bitstring 1 NIDPVSTS Previous CCW status
0028 40 Bitstring 1 NIDTRANP LAN Transport mode
00000001 NIDIP 1 NIDIP - IP Transport (Layer 3)
00000002 NIDETHER 2 NIDETHER - Ethernet Transport
(Layer 2)
0029 41 Bitstring 1 NIDLANST LAN status flags
1... .... NIDREADY X'80' NIDREADY - LAN Connection
is READY
.1.. .... NIDBCRCV X'40' NIDBCRCV - Inbound
Broadcast enabled
..1. .... NIDBCLPB X'20' NIDBCLPB - Broadcast
Loopback enabled
.... 1... NIDMGNT X'08' NIDMGNT - VSwitch
Management Port
.... .1.. NIDVSWCN X'04' NIDVSWCN - This is a
PHYSICAL UPLINK Port
.... ..1. NIDNICPT X'02' NIDNICPT - This is a NIC
UPLINK Port
.... ...1 NIDD2A8 X'01' NIDD2A8 - Diagnose x2A8
Managed Device
.... .11. NIDUPLNK NIDVSWCN+NIDNICPT NIDUPLNK -
VSWITCH UPLINK Port
002A 42 Bitstring 1 NIDLLFLG Link Layer flags
1... .... NIDLLVSW X'80' NIDLLVSW - This is a Link
Layer VSWITCH
.1.. .... NIDLLTKO X'40' NIDLLTKO - This is a
Take-Over Pseudo NIDBK
002B 43 Bitstring 1 NIDIPFLG IP Layer flags
1... .... NIDPASS_ENABLED
X'80' NIDPASS_ENABLED - Passthru
support is enable
002C 44 Signed 4 NIDRFCTR Outstanding Reference Counter
Active VLAN list for this device (NIDVLANS->NIDVID array).
VLAN 0 is active for every device, so VLAN 0
does NOT appear in this list. This list includes
an entry for each active VLAN group (except 0).
0030 48 Address 4 NIDVLANS Pointer to NIDVID array
Active MAC list for this device (NIDLLTBL->LLNBK chain).
This list includes an entry for each active MAC
address. This includes unicast, multicast, and
broadcast MAC addresses, sorted by MAC address.
0034 52 Address 4 NIDLLTBL Pointer to Link Layer table
Active IP Address Table (unicast) for this device.
IP Table entries (IPNBK) are sorted by IP Address.
IPv4 addresses are right-justified in 16-byte IPNADDR.
0038 56 Address 4 NIDIPTBL Pointer to IPNBK list
003C 60 Signed 2 NIDIPCTR Number of IP Address entries
003E 62 Signed 2 NIDLLCTR Count of Link Layer entries
Active Multicast Address Table for this device.
IP Table entries (IPNBK) are sorted by IP Address.
IPv4 addresses are right-justified in 16-byte IPNADDR.
0040 64 Address 4 NIDMCTBL Pointer to IPNBK list
0044 68 Signed 2 NIDMCCTR Number of IP Address entries
0046 70 Signed 2 NIDVMCTR Count of Link Layer VMAC entries
Router entries registered for this device.
NIDRXTBL is the anchor for a circular list of
router entries (IPNBK) chained by IPNFPNT/IPNBPNT.
Each IPNBK represents an eligible router for
a specific VLAN, IP version, and type (Primary,
Secondary, or Multicast router).
0048 72 Address 4 NIDRXTBL Pointer to IPNBK(Router) list
004C 76 Signed 2 NIDRXCTR Count of Router entries
004E 78 Signed 2 NIDSEQ DIAG2A8 Sequence Counter
Multi-VSwitch LAG
- Pointers to Take-Over NIDBKs for the network connection
- Anchored by VQSTKNHD
0050 80 Address 4 NIDTKNXT HL Pointer to next TakeOver NID
0054 84 Address 4 NIDTKPRV HL Pointer to prev TakeOver NID
The NID Spin Lock (NIDSPNLK) serializes the
following fields:
NIDGWSTS - Gateway status flag
NIDCNTRL - Device control flag
NIDCPEBK - Pointer to the SUSPEND CPEBK
NIDPNDFN - Function being suspended (see NIDGWFCN)
NIDNDMCT - Count of pending messages
NIDNDMHD - Pointer to the first message (NDMBK)
NIDNDMTL - Pointer to the last message (NDMBK)
The NIDSPIN Macro found in this COPY File should be used
to acquire and release the NID Spin Lock.
0058 88 Signed 4 * Reserved for Future IBM Use
005C 92 Address 4 NIDCPEBK HL pointer to SUSPEND CPEBK
0060 96 Address 4 * Reserved for Future IBM Use
Two Flags for Promiscuous Mode: NIDPRMFG records the
settings from the adapter or the user (via SET NIC) or the
ADMIN (via TRSOURCE ENABLE). NIDPRMAC is used to provide
a check point in case the real hardware implements Prom.
Mode. If NIDPRMFG is 80 and the NICBK is authorized
NICCFLG is 02, then NIDPRMAC is 80. When the NICBK is
offline the NIDPRMAC field will be 00.
0064 100 Bitstring 1 NIDPRMFG Promiscuous Mode Flag
.... .... NIDPRMOF X'00' NIDPRMOF Promiscuous Mode
is inactive
1... .... NIDPRMON X'80' NIDPRMON Promiscuous Mode
is active
.1.. .... NIDTRACE X'40' NIDTRACE Promiscuous Mode
Trace is active
0065 101 Bitstring 1 NIDPRMAC Promiscuous Active Flag
1... .... NIDPRMAD X'80' NIDPRMAD Promiscuous Mode
on Adapter
..1. .... NIDPRMER X'20' NIDPRMER Promiscuous Mode
Error
0066 102 Signed 2 * Reserved for Future IBM Use
0068 104 Dbl-Word 8 * Reserved for Future IBM Use
0070 112 Address 4 NIDMPCBK HL pointer to assigned MPC block
0074 116 Address 4 NIDVQSBK HL pointer to VSWITCH VQSBK
VLAN Support Fields
NIDFLAG1 is used for the general VLAN cases (when no
global VLAN ID is set) and for layer 2 VLAN support. When
a global VLAN ID is set, the NIDVLAN_GBLID flag will be on
and the logic should defer to NIDFLAG4 and NIDFlAG6 for
specifics.
NIDFLAG4 is used for IPv4 global VLAN traffic and
conflicts.
NIDFLAG6 is used for IPv6 global VLAN traffic and
conflicts.
0078 120 Bitstring 1 NIDFLAG1 VLAN support flag
1... .... NIDVLAN_ENABLED
X'80' NIDVLAN_ENABLED VLAN
support is enabled EQU X'40'
Reserved EQU X'20' Reserved EQU
X'10' Reserved
.... 1... NIDVLAN_FILTER X'08' NIDVLAN_FILTER VLAN Filter
by VID set EQU X'04' Reserved EQU
X'02' Reserved EQU X'01' Reserved
0079 121 Bitstring 1 NIDFLAG4 VLAN support flag for IPv4 EQU
X'80' Reserved
.1.. .... NIDVLAN_GBLPRT X'40' NIDVLAN_GBLPRT VLAN Global
Priority NIDGVPRT
..1. .... NIDVLAN_GBLID X'20' NIDVLAN_GBLID VLAN Global
ID in NIDGVID(4 or
...1 .... NIDVLAN_CONFLICT
X'10' NIDVLAN_CONFLICT VLAN
Conflict detected EQU X'08'
Reserved
.... .1.. NIDVLAN_FORCED X'04' NIDVLAN_FORCED VLAN Forced
by System EQU X'02' Reserved
.... ...1 NIDVLAN_GBLCONFL
X'01' NIDVLAN_GBLCONFL VLAN
Conflict with Global V
007A 122 Bitstring 1 NIDFLAG6 VLAN support flag for IPv6
.1.. .... NIDVLAN_GBLPRT X'40' NIDVLAN_GBLPRT VLAN Global
Priority NIDGVPRT
..1. .... NIDVLAN_GBLID X'20' NIDVLAN_GBLID VLAN Global
ID in NIDGVID(4 or
...1 .... NIDVLAN_CONFLICT
X'10' NIDVLAN_CONFLICT VLAN
Conflict detected EQU X'08'
Reserved
.... .1.. NIDVLAN_FORCED X'04' NIDVLAN_FORCED VLAN Forced
by System EQU X'02' Reserved
.... ...1 NIDVLAN_GBLCONFL
X'01' NIDVLAN_GBLCONFL VLAN
Conflict with Global V
007B 123 Bitstring 1 NIDRTFLG Router Flags
1... .... NIDRTPRM X'80' NIDRTPRM - Primary Router
.1.. .... NIDRTSEC X'40' NIDRTSEC - Secondary Router
..1. .... NIDRTMCR X'20' NIDRTMCR - Multicast Router
007C 124 Bitstring 4 * Reserved
Current IEEE VLAN Priority
When NIDVLAN_GBLPRT==1 it means NIDGVPRT has been set
by the device owner (Global Priority). NIDGVPRT is
merged into NIDGVTAG.
0080 128 Signed 2 NIDGVPRT Global VLAN Priority
0082 130 Signed 2 NIDGVPRT6 Global VLAN Priority
Current IEEE VLAN ID
When NIDVLAN_GBLID==1 it means NIDGVID has been
set by the device owner (Global VLAN ID). When
NIDVLAN_FORCED==1 it means NIDGVID has been set
by the system (which may override the owner).
NIDGVID is merged into NIDGVTAG.
0084 132 Signed 2 NIDGVID Global VLAN ID IPv4
00000000 NIDVLAN_NULL 0 NIDVLAN_NULL - VLAN 0 (NULL tag
/ untagged)
00000FFE NIDVLAN_LAST 4094 NIDVLAN_LAST - Last valid
VLAN
0086 134 Signed 2 NIDGVID6 Global VLAN ID IPv6
00000000 NIDVLAN_NULL 0 NIDVLAN_NULL - VLAN 0 (NULL tag
/ untagged)
00000FFE NIDVLAN_LAST 4094 NIDVLAN_LAST - Last valid
VLAN
If NIDVLAN_GBLID==1 Set NIDGVTAG on every outbound frame.
0088 136 Signed 2 NIDGVTAG Effective VLAN tag IPv4
NIDGVTAG NIDPRMSK X'E000' NIDPRMSK VLAN Priority
Mask
NIDGVTAG NIDIDMSK X'0FFF' NIDIDMSK VLAN ID Mask
008A 138 Signed 2 NIDGVTAG6 Effective VLAN tag IPv6
IDGVTAG6 NIDPRMSK X'E000' NIDPRMSK VLAN Priority
Mask
IDGVTAG6 NIDIDMSK X'0FFF' NIDIDMSK VLAN ID Mask
008C 140 Bitstring 4 * reserved
NIDDVACT contains the TOD value for the most recent:
(a) SIGA instruction executed by the virtual host, or
(b) Successful installation of data into the virtual
input queue for this session.
0090 144 Dbl-Word 8 NIDDVACT Active Device Timestamp (TOD)
0098 152 Address 4 NIDSESBK Pointer to the SESBK
009C 156 Address 4 NIDPFPNT Front Ptr for list of Prom NIDBK
00A0 160 Bitstring 24 * Reserved for Future IBM Use
Additional VLAN Attributes
00B8 184 Signed 4 NIDVLCTR NIDVID entry counter
00BC 188 Signed 2 NIDPVID Port VLAN ID
Additional Device Status Flags.
Serialization Notes on NIDDEVST:
Bits that are being set in NIDDEVST *must* be serialized
by acquiring the MAC Protect Lock (HCPNDFMP).
Serialization Notes on NIDTERM:
TEST and SET Instruction is used to indicate the QDIO
device connection is being terminated due to a security
violation.
00BE 190 Bitstring 1 NIDDEVST Device Status Flags
1... .... NIDMACPR X'80' NIDMACPR - MAC Protection
is enabled
00BF 191 Bitstring 1 NIDTERM Device Termination Pending FLAG
Pointer to the device counters for transmits and
receives. NIDDATA only.
Serialization for NIDCSTRSP is via NICCTRLK.
00C0 192 Address 4 NIDCTRSP Pointer to NID counters
00C4 196 Signed 4 * Reserved for Future IBM Use
NIDLACTS Holds Transmissions per LinkAG Interval
Notes : These counters are only used to determine the
amount of activity for a specific port in order to
balance a network load across a LinkAG port group.
Therefore, for performance reasons there is no
serialization for these counters.
00C8 200 Dbl-Word 8 NIDLACTS (0) Load Balance Interval Counters
00C8 200 Signed 4 NIDLAPRE Previous interval Datagrams
00CC 204 Signed 4 NIDLACUR Current interval datagrams
00D0 208 Signed 2 NIDDVNUM Device number of OSA
00D2 210 Bitstring 6 NIDDCMAC Current device MAC address
NIDRDTOD contains the TOD value for the most recent
stacked call to the input queue reader (HCPIQRRD).
00D8 216 Dbl-Word 8 NIDRDTOD Reader Activated Timestamp (TOD)
00E0 224 Dbl-Word 8 NIDWRTOD Outbound Process TimeStamp (TOD)
NIDWRTOD contains the TOD value
for the start of the most recent
processing loop for outbound
datagrams from this device
(HCPVNSDG).
NDMBK Receiver Handler
The CP routine to process NDMBKs it receives from a
virtual switch data transfer. The appropriate NDMBK
handler is assigned when a NIDBK is created.
00E8 232 Address 4 NIDRECV Incoming Datagram Handler
00EC 236 Bitstring 1 NIDCLASS Port Class
00000000 NIDGUEST 0 NIDGUEST Guest Port (real or
simulated)
00000004 NIDPHYUP 4 NIDPHYUP Physical UPLINK Port
00000008 NIDBRIDG 8 NIDBRIDG HiperSockets Bridge
Port
0000000C NIDIVLPT 12 NIDIVLPT IVL NIC Port
00000010 NIDTKOVR 16 NIDTKOVR Multi-VSwitch
Take-Over Port
Adapter pCHID (Physical Channel ID Slot in CEC)
The two byte Adapter pCHID (NIDPCHID) is only valid when
NIDPCVLD is on. When the pCHID is valid, it can be used
as CEC wide unique ID to identify this adapter.
00ED 237 Bitstring 3 NIDPCWRD (0) Adapter pCHID
00ED 237 Bitstring 1 NIDPCFLG pCHID Validity
1... .... NIDPCVLD X'80' NIDPCVLD pCHID is Valid
00EE 238 Signed 2 NIDPCHID Adapter pCHID
Port Type Specific Overlay Area
00F0 240 Dbl-Word 8 * (0) Insure DW Alignment of Overlay
00F0 240 Bitstring 32 NIDSPEC NIDBK device redefinition area
Adapter Port Number (Physical Port Number of Adapter)
The one byte OSA Port Number specified by the customer to
used when establishing a network connection.
0110 272 Bitstring 1 NIDRPNUM Adapter's Port Number
0111 273 Bitstring 3 * Reserved for Future IBM Use
Target IP/MAC Address Persistent Cache
Save the Most Recent Outbound IP/MAC Address
0114 276 Signed 4 NIDDXVER Destination Cache Index Version
0118 280 Bitstring 40 NIDCACHE (0) Cached destination information
0118 280 Bitstring 16 NIDIPADD Save outbound IP Address
0128 296 Bitstring 8 NIDDEST (0) Save outbound Link ID
0128 296 Bitstring 2 NIDDVID Outbound VLAN ID
012A 298 Bitstring 6 NIDDVMAC Outbound MAC Address
0130 304 Signed 4 * Reserved for Future IBM Use
0134 308 Address 4 NIDDXNID Destination L:NIDBK pointer
0138 312 Dbl-Word 8 NIDDXLLX (0) *-- Broadcast/Multicast LLXBKs
----*
0138 312 Address 4 NIDLLX01 Primary Destination LLXBK
013C 316 Address 4 NIDLLX02 Secondary Destination LLXBK
*******************************--
--
NID Transmission Queue Array (See NIDTRANS Overlay Below)
The NID Transmission Queue is a four entry array used to
maintain multiple link lists of L:NDMBKs sent to the
VSwitch Port represented by this L:NIDBK. Each entry
contains the following information:
1) Tail PTR / Lock Last or most recent L:NDMBK on
the Queue. The Tail PTR is
also used for the NID Spin
Transmisssion Lock.
2) Queue Count Number of L:NDMBKs on the Queue
3) Flags Processing Flags
4) Head PTR First or oldest L:NDMBK on Queue
The four transmission queues are used by the sending
VSwitch port to determine the sending priority of the
L:NDMBK being sent to this port. The queue priority
determines the order L:NDMBKs are inserted into the
Input QDIO Queue of a simulated port or the Output QDIO
Queue for an Uplink Port. The sending port determines
the queue and transmission priority as defined below:
QUEUE 0 Highest Priority used for all CP initiated
packet transmissions
QUEUE 1 HIGH Guest Priority assigned by the system
administrator by NICDEF or SET VSwitch.
QUEUE 2 NORMAL Guest Priority assigned by the system
administrator by NICDEF or SET VSwitch or
the default assigned priority.
QUEUE 3 LOW Guest Priority assigned by the system
administrator by NICDEF or SET VSwitch.
0140 320 Dbl-Word 8 * (0) Insure DW Alignment of Overlay
0140 320 Bitstring 64 NIDTRANS NID Transmission Queues
0180 384 Dbl-Word 8 * Reserved for future IBM use
End of NIDBK Structure
00000188 NID$END * End of NIDBK
00000188 NIDBKLN *-NIDBK Length of NIDBK in bytes
00000031 NIDBKSZ (*-NIDBK+7)/8 Size of NIDBK in
doublewords
***
*** NID Transmission Queue Overlay Definitions
***
*** Serialized : NID Tranmission Spin Lock
***
0140 320 Dbl-Word 8 NIDXSTRT (0) Start of NID Trans Q Entry
0140 320 Dbl-Word 8 NIDNDMPT (0) Pending Transmision Queue
0140 320 Address 4 NIDNDMHD Pointer to first L:NDMBK
0144 324 Address 4 NIDNDMTL Pointer to last L:NDMBK
0148 328 Signed 2 NIDNDMCT Count of pending messages
NIDNDMCT NIDGPLMT 1024 NIDGPLMT Guest Port MSG
Threshold
NIDNDMCT NIDUPLMT 4096 NIDUPLMT UPLink Port MSG
Threshold
NIDNDMCT NIDBCLMT NIDUPLMT NIDBCLMT Broadcast Storm
Threshold
014A 330 Bitstring 1 * Reserved for Future IBM Use
014B 331 Bitstring 1 NIDFLAGS Processing Flags
1... .... NIDITASK X'80' NIDITASK QDIO Inbound
Processing Task is ACTIVE
014C 332 Address 4 NIDSPNLK NID Spin Lock
0000000F NIDXMASK B'1111' Valid Index Boundary Mask
00000010 NIDXSIZE *-NIDXSTRT Size in Bytes of
Single Entry
00000004 NIDXENTY L'NIDTRANS/NIDXSIZE Number of
NIDTRANS Entries
00000030 NIDXLAST L'NIDTRANS-NIDXSIZE Last Valid
Index within NID Trans Array
***
*** End of NID Transmission Array
***
***
Multi-VSwitch LAG Take-over Overlay (NIDCLASS = NIDTKOVR)
This overlay area is only valid in a L:NIDBK used to track
a Take-Over MAC.
- Failing network connection's identification
00F0 240 Bitstring 14 NID_HOSTTO (0) Take-Over Host
00F0 240 Bitstring 8 NID_HOSTNAME Failing Host Name (VSwitch Name)
00F8 248 Bitstring 6 NID_HOSTMAC Failing Host Unicast MAC Address
00FE 254 Bitstring 2 * Reserved for future IBM use
0100 256 Dbl-Word 8 * (2) Reserved for future IBM use
UpLink Port Overlay (NIDCLASS = NIDPHYUP)
This overlay area is only valid in a L:NIDBK used for a
Physical UpLink Port on a VSwitch.
00F0 240 Dbl-Word 8 NID_TOTPFCNT Total Previous Frame Load BAL
Count for all MVLAG VSwitches
sharing this port in the LAG
00F8 248 Dbl-Word 8 * (3) Reserved for future IBM use
***
*** End of Port Specific Overlay Area Definitions
***
NIDVID - Define the Session VID Array Format
The NIDVID defines one element in the 4K VLAN Array
(one entry for each VLAN number 0-4095). Note that
VLAN(0) and VLAN(4095) are not valid VLAN groups.
Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure NIDVID Network Interface Device Block.
0000 0 Bitstring 1 NIDVIDX Status of VID in NIDVID array
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