Administrator's Guide v4.1.1 Manual

U
understanding MIBs 134
understanding SNMP basics 134
UniDirectional Link Detection (UDLD)
commands 435
example 433
requirements 433
untrusted interfaces
default user-priority mappings 487
upgrading firmware 113
USB 105
USB device 87, 116
user-priority mapping, QoS 472
user-priority mappings
for untrusted interfaces 487
V
VCS Fabric QoS 481
VCS restrictions for DSCP features 481
VDX 6740 platform 512
VDX 6740T platform 512
VDX 8770-4 platform 512
VDX 8770-8 platform 512
verifying CNA login 683
VF 375
viewing
NAS server configurations 515
NAS server IP addresses 517
Virtual Fabrics
configuring 379
performance considerations 379
Virtual Fabrics overview 375
Virtual LANs. , See VLAN
Virtual Router Redundancy Protocol (VRRP) 597
Virtual Routing and Forwarding , See VRF
vLAG
configuration overview 440
configuring 440
configuring ignore-split 443
configuring to minimize packet loss 441
VLAN
applying a MAC ACL 467
configuration guidelines and restrictions 357
configuration procedures
configuring a CEE interface as a Layer 2
switch port 360
configuring a CEE interface as an access or
trunk interface 360
configuring the MTU on an interface 358
displaying VLAN information 363
enabling and disabling a CEE interface 358
important notesVLAN
important management notes 357
VLAN classifier groups 363
VLAN classifier rules 362
default configuration 357
FDB overview 355
forwarding 342
ingress VLAN filtering 355
mapping to an MSTP instance 417
overview 355
tagging 342
VLAN classifier rules
configuring MAC address-based 362
VRF
configuring 610
enabling VRRP 611
VRF, described 609
VRF-Lite
configuring 612
See also VRF
VRF route leaking
configuring 613
VRRP
backup 597
control packets 599
enabling for VRF 611
gratuitous ARP 599
master 597
owner 597
track ports 600
track priority 600
virtual router address 597
virtual router group 597
VRRP-E
packet routing with short-path forwarding 600
short-path forwarding 600
See also VRRP
W
warm recovery. , See HA failover
X
xSTP. ., See STP
746
Network OS Administrator’s Guide
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