| .. SPDX-License-Identifier: GPL-2.0 |
| |
| ==================== |
| MPLS Sysfs variables |
| ==================== |
| |
| /proc/sys/net/mpls/* Variables: |
| =============================== |
| |
| platform_labels - INTEGER |
| Number of entries in the platform label table. It is not |
| possible to configure forwarding for label values equal to or |
| greater than the number of platform labels. |
| |
| A dense utilization of the entries in the platform label table |
| is possible and expected as the platform labels are locally |
| allocated. |
| |
| If the number of platform label table entries is set to 0 no |
| label will be recognized by the kernel and mpls forwarding |
| will be disabled. |
| |
| Reducing this value will remove all label routing entries that |
| no longer fit in the table. |
| |
| Possible values: 0 - 1048575 |
| |
| Default: 0 |
| |
| ip_ttl_propagate - BOOL |
| Control whether TTL is propagated from the IPv4/IPv6 header to |
| the MPLS header on imposing labels and propagated from the |
| MPLS header to the IPv4/IPv6 header on popping the last label. |
| |
| If disabled, the MPLS transport network will appear as a |
| single hop to transit traffic. |
| |
| * 0 - disabled / RFC 3443 [Short] Pipe Model |
| * 1 - enabled / RFC 3443 Uniform Model (default) |
| |
| default_ttl - INTEGER |
| Default TTL value to use for MPLS packets where it cannot be |
| propagated from an IP header, either because one isn't present |
| or ip_ttl_propagate has been disabled. |
| |
| Possible values: 1 - 255 |
| |
| Default: 255 |
| |
| conf/<interface>/input - BOOL |
| Control whether packets can be input on this interface. |
| |
| If disabled, packets will be discarded without further |
| processing. |
| |
| * 0 - disabled (default) |
| * not 0 - enabled |
