Configuration Limitations - Juniper ACX1000 Configuration Manual

Configuration Limitations

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Copyright © 2017, Juniper Networks, Inc.
Some GRE tunneling features are not currently available on ACX Series routers. Be aware
of the following limitations when you are configuring GRE on an ACX router:
Unsupported features—GRE on the ACX routers does not support the following features:
Virtual routing over GRE
Bidirectional Forwarding Detection (BFD) protocol over GRE distributed mode
MPLS over GRE tunnels
GRE keepalives
GRE keys, payload packet fragmentation, and sequence numbers for fragmented
packets
BGP dynamic tunnels
RFC 1701 and RFC 1702
RFC 2890—Key and sequence number extensions to GRE
IPv6 as delivery header
GRE path MTU discovery
Load balancing when NNI is ECMP
Interface statistics on GRE interfaces
Class of service and firewall on GRE tunnel
Routing Protocol—ACX routers do not support routing protocols on GRE interfaces.
You need to disable routing on GRE interfaces under the [edit protocols] hierarchy. For
example,
[edit]
user@host# show protocols
ospf {
area 0.0.0.0 {
interface all;
interface gr-0/0/10.0 {
disable;
}
}
}
NOTE: This limitation is applicable for all routing protocols (such as OSPF,
ISIS).
Configuring Generic Routing Encapsulation Tunneling on ACX Series on page 584
Configuring Unicast Tunnels on page 585
Chapter 19: Configuring Generic Routing Encapsulation
583