D-Link DGS-3630 Series Reference Manual page 384

DGS-3630 Series Layer 3 Stackable Managed Switch Web UI Reference Guide
Parameter
Max Area Addresses
Max LSP Lifetime
Metric Style
Set Overload Bit
On Startup
Suppress
SPF Interval Level-1
Description
LSPs from timing out.
Reducing the refresh interval reduces the amount of time undetected link-state
database corruption can persist at the cost of increased link utilization. Increasing
the interval reduces the link utilization caused by the flooding of refreshed
packets.
The range is from 1 to 65535 seconds. Select the Default option to use the
default value.
Enter the maximum area addresses value here. Use this to maximize the size of
an ISIS area by configuring additional manual addresses.
The range is from 3 to 254. Select the Default option to use the default value.
Enter the maximum LSP lifetime value here. This is used to configure the
maximum lifetime value of link-state packets.
The range is from 1 to 65535 seconds. Select the Default option to use the
default value.
Select the metric style here. This is used configure the ISIS process generation
and metric style acceptation. Options to choose from are:
•
Narrow - Specifies to generate old-style metric TLVs.
•
Wide - Specifies to generate new-style metric TLVs.
•
Narrow Transition - Specifies to generate old-style metric TLVs and to
accept both old and new-style metric TLVs.
•
Wide Transition - Specifies to generate new-style metric TLVs and to
accept both old and new-style metric TLVs.
•
Transition - Specifies to generate both old and new-style metric TLVs.
Also for each metric style, the level can be selected. Options to choose from are:
• Level-1 - Specifies to enable this only on level 1 routing.
• Level-1-2 - Specifies to enable this on both level 1 and level 2 routing.
• Level-2 - Specifies to enable this only on level 2 routing.
Select to enable or disable the set overload bit feature here. This is used to force
the ISIS process to set the overload bit in its non-pseudo node LSPs. Normally,
the setting of the overload bit is allowed only when a router runs into problems.
For example, when a router is experiencing a memory shortage, it might be that
the LSPDB isn't complete, resulting in an incomplete or inaccurate routing table.
By setting the overload bit in its LSPs, other router can ignore the unreliable
router in their SPF calculations until the router has recovered from its problems.
Enter the set overload bit on startup time value here. This specifies to configure
the overload bit upon the system when starting up. The overload bit remains
configured for the number of seconds specified. The range is from 5 to 86400
seconds.
Select the suppress option here. This specifies that the type of prefix identified by
the subsequent keyword or keywords will be suppressed. Options to choose from
are:
• None - Specifies that it will not prevent any IP prefixes learned from another
ISIS level and from other protocols from being advertised.
• Interlevel - Specifies that it will prevent the IP prefixes learned from another
ISIS level from being advertised.
• External - Specifies that it will prevent the IP prefixes learned from other
protocols from being advertised.
• Both - Specifies that it will prevent the IP prefixes learned from another ISIS
level and from other protocols from being advertised.
Enter the SPF interval level-1 value here. This is used to customize ISIS throttling
of SPF calculations applied to level-1 areas only. The range is from 1 to 120
seconds. Select the Default option to use the default value.
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