| 1 | |
| 2 |
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| 3 | ====================
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| 4 | MPLS Sysfs variables
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| 5 | ====================
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| 6 |
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| 7 | /proc/sys/net/mpls/* Variables:
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| 8 | ===============================
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| 9 |
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| 10 | platform_labels - INTEGER
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| 11 | Number of entries in the platform label table. It is not
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| 12 | possible to configure forwarding for label values equal to or
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| 13 | greater than the number of platform labels.
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| 14 |
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| 15 | A dense utilization of the entries in the platform label table
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| 16 | is possible and expected as the platform labels are locally
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| 17 | allocated.
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| 18 |
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| 19 | If the number of platform label table entries is set to 0 no
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| 20 | label will be recognized by the kernel and mpls forwarding
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| 21 | will be disabled.
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| 22 |
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| 23 | Reducing this value will remove all label routing entries that
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| 24 | no longer fit in the table.
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| 25 |
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| 26 | Possible values: 0 - 1048575
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| 27 |
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| 28 | Default: 0
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| 29 |
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| 30 | ip_ttl_propagate - BOOL
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| 31 | Control whether TTL is propagated from the IPv4/IPv6 header to
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| 32 | the MPLS header on imposing labels and propagated from the
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| 33 | MPLS header to the IPv4/IPv6 header on popping the last label.
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| 34 |
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| 35 | If disabled, the MPLS transport network will appear as a
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| 36 | single hop to transit traffic.
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| 37 |
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| 38 | * 0 - disabled / RFC 3443 [Short] Pipe Model
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| 39 | * 1 - enabled / RFC 3443 Uniform Model (default)
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| 40 |
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| 41 | default_ttl - INTEGER
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| 42 | Default TTL value to use for MPLS packets where it cannot be
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| 43 | propagated from an IP header, either because one isn't present
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| 44 | or ip_ttl_propagate has been disabled.
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| 45 |
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| 46 | Possible values: 1 - 255
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| 47 |
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| 48 | Default: 255
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| 49 |
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| 50 | conf/<interface>/input - BOOL
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| 51 | Control whether packets can be input on this interface.
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| 52 |
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| 53 | If disabled, packets will be discarded without further
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| 54 | processing.
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| 55 |
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| 56 | * 0 - disabled (default)
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| 57 | * not 0 - enabled
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