Access Control Lists; Igmp Snooping; Switched Port Analyzer - Cisco Nexus 5000 Series Configuration Manual

Access Control Lists

The parent switch provides two predefined type qos class maps for matching broadcast or multicast traffic;
class-all-flood and class-ip-multicast. These classes are ignored on the Fabric Extender.
The Fabric Extender uses IEEE 802.1p class of service (CoS) values to associate traffic with the appropriate
class. Per-port QoS configuration and CoS-based egress queuing is also supported.
Host interfaces support pause frames, which are implemented using IEEE 802.3x link-level flow control
(LLC). By default, flow control send is on and flow control receive is off on all host interfaces. Autonegotiation
is enabled on the host interfaces. Per-class flow control is set according to the QoS classes.
Host interfaces support jumbo frames (up to 9216 bytes); however, a per-host interface maximum transmission
unit (MTU) is not supported. Instead, MTU is set according to the QoS classes. You modify MTU by setting
policy and class maps on the parent switch. Because the Fabric Extender has only two user queues, the MTU
for the drop-queue is set to the maximum MTU of all drop classes and the MTU on the no-drop queue is set
to the maximum MTU of all no-drop classes.
For more information about LLC and quality-of-service, see the Cisco Nexus 5000 Series NX-OS Quality of
Service Configuration Guide.
Access Control Lists
The Cisco Nexus 2000 Series Fabric Extender supports the full range of ingress access control lists (ACLs)
that are available on its parent switch.

IGMP Snooping

IGMP snooping is supported on all host interfaces of the Fabric Extender.
The Fabric Extender and its parent switch support IGMPv3 snooping based only on the destination multicast
MAC address. It does not support snooping based on the source MAC address or on proxy reports.
For more information about IGMP snooping, see
Note
rfc4541.txt. Also, see the Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration GuideCisco
Nexus 7000 Series NX-OS Multicast Routing Configuration Guide.

Switched Port Analyzer

You can configure the host interfaces on the Fabric Extender as Switched Port Analyzer (SPAN) source ports.
Fabric Extender ports cannot be configured as a SPAN destination. Only one SPAN session is supported for
all the host interfaces on the same Fabric Extender. Ingress source (Rx), egress source (Tx), or both ingress
and egress monitoring are supported.
Cisco Nexus 5000 Series NX-OS Layer 2 Switching Configuration Guide, Release 5.0(3)N1(1)
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http://tools.ietf.org/wg/magma/draft-ietf-magma-snoop/
Configuring the Fabric Extender