Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 633)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 609
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IS-IS shortcuts
5
Displaying IS-IS shortcut statistics
The show isis command output includes the following information about IS-IS shortcuts:
• Whether or not IS-IS shortcuts are enabled
• The number of IS-IS shortcuts configured
• How many IS-IS shortcuts are UP
• How many IS-IS shortcuts are advertised
The information is displayed at the bottom of the show isis display output. For example:
Brocade# show isis
(truncated for brevity)...
ISIS Shortcuts: 20 configured, 10 are up, and 10 are announced
Or
Brocade# show isis
(truncated for brevity)...
No isis shortcuts configured
ECMP forwarding for IP over MPLS
ECMP hardware forwarding is supported for IP over MPLS packets when an outgoing interface is
configured as a physical port and a VE interface, or configured on an MPLS tunnel. When multiple
routes use ECMP to reach a destination, hardware ECMP is automatically enabled. ECMP load
sharing for IP over MPLS is supported for 2-8 tunnels, with a default of four tunnels.
Brocade NetIron XMR and Brocade MLX series devices support ECMP hardware forwarding only in
static CAM mode. ECMP hardware forwarding is not supported for dynamic mode. Hitless upgrade
for ECMP hardware forwarding is not supported. ECMP hardware forwarding is not supported on
Brocade NetIron CES and Brocade NetIron CER devices.
For ECMP hardware forwarding, all outgoing interface paths must configured in the same VRF, and
must belong to an MPLS tunnel. A hash value is computed for a packet when it is received by XPP.
XPP uses the hash value to select a PRAM that forwards the packet to the destination. An ECMP
PRAM block consists of 8 PRAMs. The hash value for each outgoing packet on a customer edge
router interface is calculated based on source MAC address, destination MAC address, VLAN ID,
source IP address, destination IP address, IP protocol field, TCP or UDP source port, and TCP or
UDP destination port.
The hash value for each incoming packet on the route target is calculated based on the source
MAC address, destination MAC address, VLAN ID, source IP address, destination IP address, IP
protocol field, TCP or UDP source port, TCP or UDP destination port, and a VC label for an MPLS
packet.
Not announced due to
configuration Indicates that announce is not configured.
Last notification from MPLS
received The last time (in hours, minutes, seconds) a status notification was received from
MPLS.
TABLE 104 Output for the show isis shortcuts detail command
This field... Displays