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Dell PowerSwitch S4128F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 288

Protocol data units

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Protocol data units LLDP devices exchange system information represented as type, length, and value (TLV) segments: Type Length Value Information included in the TLV. Value in bytes of the TLV after the Length field. System information the agent advertises. tlv segment LAN devices transmit LLDPDUs, which encapsulate TLVs, to neighboring LAN devices. LLDP is a one-way protocol and LAN devices (LLDP agents) transmit and/or receive advertisements but they cannot solicit and do not respond to advertisements. There are three mandatory TLVs followed by zero or more optional TLVs and the end of the LLDPDU TLV. The three mandatory TLVs must be located at the beginning of the LLDPDU in the following order: • Chassis ID TLV • Port ID TLV • Time-to-live TLV 0 - End of LLDPDU Marks the end of an LLDPDU. 1 - Chassis ID Identifies the LAN agent. 2 - Port ID Identifies a port through which the LAN device transmits LLDPDUs. 3 - Time-to-live Number of seconds that the recipient LLDP agent considers the information associated with this MAP identifier to be valid. - Optional Includes sub-types of TLVs that advertise specific configuration information. These sub-types are management TLVs, IEEE 802.1, IEEE 802.3, and TIA-1057 organization-specific TLVs. 288 Layer 2

Section	Page
OS10 Enterprise Edition User Guide Release 10.4.3.0	3
Getting Started	29
Supported Hardware	29
Download OS10 image and license	30
Installation using ONIE	31
Automatic installation	32
Manual installation	33
Log into OS10	34
Install OS10 license	35
Zero-touch deployment	37
ZTD DHCP server configuration	39
ZTD provisioning script	39
ZTD CLI batch file	40
Post-ZTD script	41
ZTD commands	41
Remote access	42
Configure Management IP address	43
Management Route Configuration	43
Configure user name and password	44
CLI Basics	44
User accounts	44
Key CLI features	45
CLI command modes	45
CLI command hierarchy	46
CLI command categories	46
CONFIGURATION Mode	46
Command help	46
Check device status	48
Candidate configuration	50
Change to transaction-based configuration mode	54
Copy running configuration	55
Restore startup configuration	55
Reload system image	56
Filter show commands	56
Alias command	56
Batch mode	60
Linux shell commands	61
SSH commands	61
OS9 environment commands	62
Common commands	62
alias	62
alias (multi-line)	64
batch	64
boot	65
commit	65
configure	65
copy	66
default (alias)	67
delete	67
description (alias)	68
dir	69
discard	69
do	70
feature config-os9-style	70
exit	70
hostname	71
license	71
line (alias)	72
lock	72
management route	72
move	73
no	74
reload	74
show alias	74
show boot	75
show candidate-configuration	76
show environment	78
show inventory	79
show ip management-route	79
show ipv6 management-route	80
show license status	80
show running-configuration	81
show startup-configuration	83
show system	84
show version	86
start	87
system	87
system-cli disable	87
system identifier	88
terminal	88
traceroute	88
unlock	90
write	90
System management	91
OS10 upgrade	91
Boot system partition	92
Upgrade commands	93
System banners	97
Login banner	97
MOTD banner	97
System banner commands	98
User session management	99
User session management commands	99
Telnet server	101
Telnet commands	101
Simple Network Management Protocol	102
MIBs	102
SNMP security models and levels	103
SNMPv3	104
SNMP engine ID	104
SNMP groups and users	104
SNMP views	104
Configure SNMP	104
SNMP commands	107
System clock	117
System Clock commands	117
Network Time Protocol	119
Enable NTP	120
Broadcasts	120
Source IP address	121
Authentication	121
Sample NTP configuration	122
NTP commands	125
Dynamic Host Configuration Protocol	130
Packet format and options	130
DHCP server	131
Automatic address allocation	132
Hostname resolution	133
Manual binding entries	134
Configuring a DHCP client on a non-default VRF instance	135
DHCP relay agent	136
View DHCP Information	137
System domain name and list	137
DHCP commands	138
DNS commands	144
IPv4 DHCP limitations	146
Interfaces	148
Ethernet interfaces	148
Unified port groups	148
Z9264F-ON port-group profiles	149
L2 mode configuration	151
L3 mode configuration	151
Fibre Channel interfaces	152
Management interface	153
VLAN interfaces	154
User-configured default VLAN	154
VLAN scale profile	155
Loopback interfaces	155
Port-channel interfaces	156
Create port-channel	156
Add port member	156
Minimum links	157
Assign Port Channel IP Address	157
Remove or disable port-channel	158
Load balance traffic	158
Change hash algorithm	159
Configure interface ranges	159
Switch-port profiles	160
S4148-ON Series port profiles	161
S4148U-ON port profiles	161
Configure breakout mode	163
Breakout auto-configuration	163
Forward error correction	164
Energy-efficient Ethernet	165
Enable energy-efficient Ethernet	165
Clear EEE counters	166
View EEE status/statistics	166
EEE commands	167
View interface configuration	170
Digital optical monitoring	173
Enable DOM and DOM traps	174
Interface commands	175
channel-group	175
default vlan-id	175
description (Interface)	176
duplex	176
enable dom	177
enable dom traps	177
feature auto-breakout	178
fec	178
interface breakout	179
interface ethernet	179
interface loopback	179
interface mgmt	180
interface null	180
interface port-channel	181
interface range	181
interface vlan	182
link-bundle-utilization	182
mode	182
mode l3	183
mtu	184
port mode Eth	184
port-group	185
profile	185
scale-profile vlan	186
show interface	186
show inventory media	188
show link-bundle-utilization	188
show port-channel summary	189
show port-group	190
show switch-port-profile	191
show system	191
show vlan	192
shutdown	192
speed (Fibre Channel)	193
speed (Management)	193
switch-port-profile	194
switchport access vlan	196
switchport mode	196
switchport trunk allowed vlan	197
Fibre Channel	198
Terminology	199
Virtual fabric	199
Fibre Channel zoning	202
F_Port on Ethernet	203
Pinning FCoE traffic to a specific port of a port-channel	204
Sample FSB configuration on VLT network	206
Sample FC Switch configuration on VLT network	208
Sample FSB configuration on non-VLT network	209
Sample FC Switch configuration on non-VLT network	211
Multi-hop FIP-snooping bridge	212
Configuration notes	213
Configure multi-hop FSB	213
Verify multi-hop FSB configuration	218
Sample Multi-hop FSB configuration	219
Configuration guidelines	232
F_Port commands	232
fc alias	232
fc zone	232
fc zoneset	233
feature fc	233
member (alias)	233
member (zone)	234
member (zoneset)	234
show fc alias	235
show fc interface-area-id mapping	235
show fc ns switch	235
show fc zone	236
show fc zoneset	237
zone default-zone permit	238
zoneset activate	238
NPG commands	239
fc port-mode F	239
feature fc npg	239
show npg devices	239
F_Port and NPG commands	240
clear fc statistics	240
fcoe	241
name	241
show fc statistics	242
show fc switch	242
show running-config vfabric	243
show vfabric	243
vfabric	244
vfabric (interface)	244
vlan	244
FIP-snooping commands	245
feature fip-snooping	245
fip-snooping enable	245
fip-snooping fc-map	246
fip-snooping port-mode	246
FCoE commands	247
clear fcoe database	247
clear fcoe statistics	247
fcoe-pinned-port	248
fcoe max-sessions-per-enodemac	248
fcoe priority-bits	248
lldp tlv-select dcbxp-appln fcoe	249
show fcoe enode	249
show fcoe fcf	250
show fcoe pinned-port	250
show fcoe sessions	251
show fcoe statistics	251
show fcoe system	252
show fcoe vlan	252
Layer 2	253
802.1X	253
Port authentication	254
EAP over RADIUS	255
Configure 802.1X	255
Enable 802.1X	256
Identity retransmissions	257
Failure quiet period	258
Port control mode	258
Reauthenticate port	259
Configure timeouts	260
802.1X commands	261
Far-end failure detection	265
Enable FEFD globally	267
Enable FEFD on interface	268
Reset FEFD err-disabled interface	268
Display FEFD information	268
FEFD Commands	269
Link Aggregation Control Protocol	272
Modes	272
Configuration	273
Interfaces	273
Rates	274
Sample configuration	274
LACP fallback	278
LACP commands	280
Link Layer Discovery Protocol	287
Protocol data units	288
Optional TLVs	289
Organizationally-specific TLVs	289
Media endpoint discovery	292
Network connectivity device	292
LLDP-MED capabilities TLV	293
Network policies TLVs	294
Define network policies	294
Packet timer values	295
Disable and re-enable LLDP	295
Disable and re-enable LLDP on management ports	296
Advertise TLVs	297
Network policy advertisement	297
Fast start repeat count	298
View LLDP configuration	298
Adjacent agent advertisements	299
Time to live	300
LLDP commands	301
Media Access Control	312
Static MAC Address	313
MAC Address Table	313
Clear MAC Address Table	313
MAC Commands	314
Multiple Spanning-Tree	316
Configure MSTP	317
Create instances	318
Root selection	319
Non-Dell EMC hardware	320
Region name or revision	320
Modify parameters	320
Interface parameters	321
EdgePort Forward traffic	322
Spanning-tree extensions	322
Recover BPDU guard error disabled ports	324
Setting spanning-tree link type for rapid state transitions	325
MAC flush optimization	325
MST commands	327
Rapid per-VLAN spanning-tree plus	339
Load balance and root selection	340
Enable RPVST+	340
Select root bridge	341
Root assignment	342
Loop guard	343
Global parameters	343
Setting spanning-tree link type for rapid state transitions	344
MAC flush optimization	344
RPVST+ commands	344
Rapid Spanning-Tree Protocol	353
Enable globally	353
Global parameters	355
Interface parameters	356
Root bridge selection	357
EdgePort forward traffic	357
Spanning-tree extensions	358
Setting spanning-tree link type for rapid state transitions	359
MAC flush optimization	360
RSTP commands	360
Virtual LANs	367
Default VLAN	367
Create or remove VLANs	368
Access mode	369
Trunk mode	370
Assign IP address	370
View VLAN configuration	371
VLAN commands	373
Port monitoring	374
Local port monitoring	374
Remote port monitoring	375
Encapsulated remote port monitoring	377
Flow-based monitoring	378
Remote port monitoring on VLT	379
Port monitoring commands	381
Layer 3	386
Virtual routing and forwarding	386
Configure management VRF	386
Configure non-default VRF instances	388
VRF configuration	391
View VRF instance information	395
Static route leaking	396
VRF commands	399
Bidirectional Forwarding Detection	407
BFD session states	408
BFD three-way handshake	409
BFD configuration	410
Configure BFD globally	410
BFD for BGP	411
BFD for OSPF	415
BFD for Static route	420
BFD commands	422
Border Gateway Protocol	429
Sessions and peers	430
Route reflectors	430
Multiprotocol BGP	431
Attributes	431
Selection criteria	432
Weight and local preference	433
Multiexit discriminators	433
Origin	434
AS path and next-hop	434
Best path selection	434
More path support	435
Advertise cost	436
4-Byte AS numbers	436
AS number migration	436
Configure Border Gateway Protocol	437
Enable BGP	438
Configure Dual Stack	440
Configure administrative distance	440
Peer templates	441
Neighbor fall-over	445
Configure password	446
Fast external fallover	448
Passive peering	449
Local AS	450
AS number limit	451
Redistribute routes	452
Additional paths	452
MED attributes	452
Local preference attribute	453
Weight attribute	454
Enable multipath	454
Route-map filters	454
Route reflector clusters	455
Aggregate routes	456
Confederations	456
Route dampening	457
Timers	458
Neighbor soft-reconfiguration	459
BGP commands	459
Equal cost multi-path	493
Load balancing	493
Maximum ECMP groups and paths	497
ECMP commands	497
IPv4 routing	502
Assign interface IP address	502
Configure static routing	503
Address Resolution Protocol	504
IPv4 routing commands	504
IPv6 routing	509
Enable or disable IPv6	509
IPv6 addresses	510
Stateless autoconfiguration	512
Neighbor Discovery	512
Duplicate address discovery	514
Static IPv6 routing	514
IPv6 destination unreachable	515
IPv6 hop-by-hop options	515
View IPv6 information	515
IPv6 commands	516
Open shortest path first	528
Autonomous system areas	528
Areas, networks, and neighbors	529
Router types	529
Designated and backup designated routers	530
Link-state advertisements	531
Router priority	532
Shortest path first throttling	532
OSPFv2	534
OSPFv3	567
Object tracking manager	587
Interface tracking	588
Host tracking	589
Set tracking delays	590
Object tracking	590
View tracked objects	590
OTM commands	591
Policy-based routing	594
Policy-based route-maps	594
Access-list to match route-map	594
Set address to match route-map	594
Assign route-map to interface	595
View PBR information	595
Policy-based routing per VRF	596
Configuring PBR per VRF	596
Sample configuration	597
Track route reachability	597
Use PBR to permit and block specific traffic	598
View PBR configuration	599
PBR commands	599
Virtual Router Redundancy Protocol	603
Configuration	603
Create virtual router	604
Group version	604
Virtual IP addresses	605
Configure virtual IP address	605
Configure virtual IP address in a VRF	606
Set group priority	607
Authentication	608
Disable preempt	608
Advertisement interval	609
Interface/object tracking	610
Configure tracking	610
VRRP commands	611
Multicast	617
Important notes	617
Configure multicast routing	617
Unknown multicast flood control	618
Enable multicast flood control	619
Multicast Commands	619
multicast snooping flood-restrict	619
Internet Group Management Protocol	620
Standards compliance	620
Important notes	621
Supported IGMP versions	621
Query interval	621
Last member query interval	621
Maximum response time	621