Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 158)

Layer 3 configuration notes
• Changing the system parameters reconfigures the device memory. Whenever you reconfigure the
memory on a Brocade device, you must save the change to the startup-config file, and then reload
the software to place the change into effect.
• The Layer 3 system parameter limits for FastIron IPv6 models are automatically adjusted by the
system and cannot be manually modified.
FastIron second generation modules
FastIron IPv6 models support the same Layer 3 system parameters that use hardware memory as do
FastIron IPv4 models. However, there are some configuration differences between second generation
modules and first generation modules. The differences are as follows:
• Number of IP next hops - 6144 maximum and default value.
• Number of multicast output interfaces (clients) - 3072 maximum. This value is fixed in second
generation modules and cannot be modified. This system parameter occupies its own hardware
memory space.
To display the current settings for the Layer 3 system parameters, use the show default value
command.
FastIron third generation modules
The default value of next hop entries on FastIron X Series devices with the following third generation
modules installed is 16384. This value is predefined and not editable.
• SX-FI48GPP
• SX-FI-2XG
• SX-FI-8XG
• SX-FI-24HF
• SX-FI-24GPP
If the FastIron X Series device is installed with first generation or second generation modules, the
system automatically calculates the default value for these modules.
Displaying Layer 3 system parameter limits
To display the Layer 3 system parameter defaults, maximum values, and current values, enter the
show default value command at any level of the CLI.
The following example shows output on a FastIron X Series with second generation modules.
device#show default value
sys log buffers:50 mac age time:300 sec telnet sessions:5
ip arp age:10 min bootp relay max hops:4 ip ttl:64 hops
ip addr per intf:24
igmp group memb.:140 sec igmp query:60 sec
ospf dead:40 sec ospf hello:10 sec ospf retrans:5 sec
ospf transit delay:1 sec
System Parameters Default Maximum Current
ip-arp 4000 64000 4000
ip-static-arp 512 1024 512
some lines omitted for brevity....
hw-traffic-condition 50 1024 50
Layer 3 configuration notes
158 FastIron Ethernet Switch Layer 3 Routing Configuration Guide
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