Brocade FastIron Ethernet Switch Stacking Configuration Gu Manual de usuario descargar pdf (Pagina 100)

Hitless-supported services and protocolsTABLE 18

Traffic type Supported protocols

and services

Impact

Layer 2

switched

traffic,

including

unicast and

multicast

System-level

Layer 4

• 802.1p and

802.1Q

• 802.3ad - LACP

• 802.3af - PoE

• 802.3at - PoE+

• DSCP honoring

and Diffserv

• Dual-mode VLAN

• IGMP v1, v2, and

v3 snooping

• IPv4 ACLs

• Layer 2 switching

(VLAN and

802.1Q-in-Q)

• MAC-based

VLANs

• MLD v1 and v2

snooping

• MRP

• Multiple spanning

tree (MSTP)

• Physical port/link

state

• PIM SM snooping

• Port mirroring and

monitoring

• Port trunking

• Rapid spanning

tree (RSTP)

• Spanning tree

(STP)

• ToS-based QoS

• Policy Based

Routing

• Traffic policies

• UDLD

• VSRP

Layer 2 switched traffic is

not impacted during a

hitless stacking event. All

existing switched traffic

flows continue

uninterrupted.

New switched flows are

not learned by the switch

during the switchover

process and are flooded to

the VLAN members in

hardware. After the new

active controller becomes

operational, new switched

flows are learned and

forwarded accordingly.

The Layer 2 control

protocol states are not

interrupted during the

switchover process.

Layer 3

IPv4

routed

traffic

(unicast)

• IPv4

unicast

forwarding

• Static

routes

• OSPF v2

with

ECMP

• VRRP

• VRRP-E

• BGP4+

Layer 3 routed

traffic for

supported

protocols is not

impacted

during a hitless

stacking event.

All existing

Layer 3 IPv4

multicast flows

and receivers

may be

interrupted.

Traffic will

converge to

normalcy after

the new active

module

becomes

operational.

Other Layer 3

protocols that

are not

supported will

be interrupted

during the

switchover or

failover.

If BGP4+

graceful restart

or OSPF

graceful restart

is enabled, it

will be

gracefully

restarted and

traffic will

converge to

normalcy after

the new active

module

becomes

operational.

For details

about OSPF

graceful restart

and BGP4+

graceful

restart, refer to

the FastIron

Ethernet

Switch Layer 3

Routing

Configuration

Guide.

Traditional Stacking

98 FastIron Ethernet Switch Stacking Configuration Guide

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