3
Cisco IOS XE 3S Release Notes for the Cisco ASR 903 Router
OL-26630-12
Chapter
New Software Features in Cisco IOS XE Release 3.6(1)S
•
PPP MRRU Negotiation Configuration—Introduces support for the
ppp multilink mrru
command,
which allows you to specify a Maximum-Receive-Reconstructed-Unit (MRRU) value on MLP
interfaces and member links after a change in the MTU value on the interface. For details about this
feature, see
http://www.cisco.com/en/US/docs/ios/dial/configuration/guide/dia_pppmlp_mrru_neg.html
.
•
ACFC and PFC Support on Multilink Interfaces—Using the Address and Control Field
Compression (ACFC) and PPP Protocol Field Compression (PFC) Support on Multilink Interfaces
feature, you can control the negotiation and application of the Link Control Protocol (LCP)
configuration options for ACFC and PFC.
This release introduces support for ACFC and PFC support on serial interfaces on the T1/E1 and
optical interface modules. This feature includes support for the following commands:
–
ppp acfc local
{
request
|
forbid
}
–
ppp acfc remote
{
apply
|
reject
|
ignore
}
–
ppp pfc local
{
request
|
forbid
}
–
ppp pfc remote
{
apply
|
reject
|
ignore
}
For more information about configuring ACFC and PFC, see the following documents
–
http://www.cisco.com/en/US/partner/docs/interfaces_modules/shared_port_adapters/configurati
on/7600series/76cfgsip.html#wp1372108
–
http://www.cisco.com/en/US/partner/docs/routers/7600/install_config/flexwan_config/features.h
tml#wp256581
•
Egress QoS policies on main physical interface for port s H-policies on EFP—Previous
releases did not support QoS policies on interfaces configured with an Ethernet Flow Point (EFP)
or port-channel member links with EFPs. This release introduces support for hierarchical QoS
policies on EFP interfaces. For more information about how to configure QoS on EFP interfaces, see
http://www.cisco.com/en/US/docs/wireless/asr_900/software/guide/chassis/Release3.6.0S/ASR90
3-Chassis-SW-36.html
•
Switch Port Analyzer—Release 3.6.1 introduces support for Switch Port Analyzer (SPAN) on
physical interfaces. The following commands are supported:
–
monitor session
{
session_number
} {
source
{
interface
slot
/
port
}} [, | - |
rx
|
tx
|
both
]
–
monitor session
{
session_number
} {
destination
{
interface
type
/
num
} [, | - ]}
For more information about SPAN, see
http://www.cisco.com/en/US/docs/wireless/asr_900/feature/guides/SPAN.html
•
Support for MPLS Labels with PTP traffic- This release introduces support for MPLS labels with
PTP Delay-Request packets. The following encapsulation types are supported:
–
VPN
–
BGP IPv4
–
LDP
–
FRR
The router adds time stamps to MPLS-encapsulated PTP packets by default.
•
Reverse Path Forwarding failure handling—This release introduces support for the
platform
multicast rpf_fail_handling enable
command. The Cisco ASR 903 Router hardware does not
handle RPF fail packets default; you can use this command to enable RPF fail packets handling.