Peer Parameters Commands
Page 288 7210 SAS M, T, X, R6, Mxp MPLS Configuration
Guide
re-distributed to other LDP and T-LDP peers. A FEC prefix that is filtered out (deny) will not be
imported. A FEC prefix that is filtered in (accept) will be imported.
If no import policy is specified, the node will import all prefixes received from this LDP/T-LDP peer.
This policy is applied in addition to the global LDP policy and targeted session policy. Policies are
configured in the config>router>policy-options context. A maximum of five policy names can be
specified. Peer address has to be the peer LSR-ID address.
The no form of the command removes the policy from the configuration.
Default no import-prefixes - no import route policy is specified
Parameters policy-name — The import-prefix route policy name. Allowed values are any string up to 32
characters long composed of printable, 7-bit ASCII characters excluding double quotes. If the string
contains spaces, use double quotes to delimit the start and end of the string. The specified name(s)
must already be defined
path-mtu-discovery
Syntax [no] path-mtu-discovery
Context config>router>ldp>peer-parameters>peer
Description This command enables Path MTU discovery for the associated TCP connections. When enabled, the
MTU for the associated TCP session is initially set to the egress interface MTU. The DF bit is also set
so that if a router along the path of the TCP connection cannot handle a packet of a particular size
without fragmenting, it sends back and ICMP message to set the path MTU for the given session to a
lower value that can be forwarded without fragmenting.
Default no path-mtu-discovery
ttl-security
Syntax ttl-security min-ttl-value
no ttl-security
Context config>router>ldp>peer-parameters>peer
Description This command configures TTL security parameters for incoming packets. When the feature is
enabled, BGP/LDP will accept incoming IP packets from a peer only if the TTL value in the packet is
greater than or equal to the minimum TTL value configured for that peer. Peer address has to be the
TCP session transport address.
The no form of the command disables TTL security.
Default no ttl-security
Parameters min-ttl-value — Specify the minimum TTL value for an incoming packet.
Values 1 — 255
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