Cisco S45EESK9-12240SG= Manuale Utente
Product Bulletin
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Standard and extended ACLs
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IPv6 uRPF Strict Mode
IPv6 Forwarding in hardware is only supported on the Supervisor Engine 6-E.
For more information about Cisco IPv6 features, see
http://www.cisco.com/ipv6
.
Enhanced Interior Gateway Routing Protocol IPv6 Support
Customers can configure Enhanced Interior Gateway Routing Protocol (EIGRP) to route IPv6
prefixes. EIGRP configuration and protocol behavior for both IPv4 and IPv6 prefixes are similar,
providing operational familiarity and continuity. EIGRP support for IPv6 will enable customers to
use their existing EIGRP knowledge and processes, allowing them to deploy an IPv6 network at a
low cost.
IPv6 Multicast Listener Discovery and Multicast Listener Discovery Snooping
Multicast Listener Discovery (MLD) is a protocol used by IPv6 multicast devices to discover the
presence of multicast listeners (nodes wishing to receive IPv6 multicast packets) on its directly
attached links and to discover which multicast packets are of interest to neighboring nodes. MLD
snooping is supported in two different versions: MLD v1 and MLD v2. Network switches use MLD
snooping to limit the flood of multicast traffic, causing IPv6 multicast data to be selectively
forwarded to a list of ports that want to receive the data, instead of being flooded to all ports in a
VLAN. This lessens the load on devices in the network, minimizing unnecessary bandwidth on
links, enabling efficient distribution of IPv6 multicast data.
Gateway Load Balancing Protocol
The Gateway Load Balancing Protocol (GLBP) feature provides automatic router backup for IP
hosts configured with a single default gateway on a LAN. Multiple first hop routers on the LAN
combine to offer a single virtual first hop IP router while sharing the IP packet forwarding load.
GLBP devices share packet-forwarding responsibilities, optimizing resource usage, thereby
reducing costs. Other routers on the LAN may act as redundant GLBP routers that will become
active if any of the existing forwarding routers fail. This improves the resiliency of the network and
reduces administrative burden. GLBP is a feature that is applicable for the Supervisor Engine 6-E
and the classic supervisor engines.
Support for TwinGig Converter Module
The Cisco TwinGig converter module offers investment protection for 10 Gigabit Ethernet switches,
converting a 10 Gigabit Ethernet X2 interface into two Gigabit Ethernet Small Form-Factor
Pluggable (SFP) ports. In this way, customers can initially use the switch with Gigabit Ethernet
uplinks and later implement 10 Gigabit Ethernet uplinks as business demands change. The
Supervisor Engine 6-E supports the TwinGig converter module.
Robust and Flexible File Management System (FAT File System)
The FAT file system is widely used to manage files on devices disks and flash. The support of the
FAT file system allows one to easily remove, add, and/or transfer images to and from the flash.