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10-port 10-Gigabit Ethernet LAN/WAN PIC Overview

This section describes the main features and caveats of the 10-port 10-Gigabit Ethernet LAN/WAN PIC with SFP+ (model number PD-5-10XGE-SFPP) and specifies which routers support this PIC.

• Access to all 10-Gigabit Ethernet port counters through SNMP
• Intelligent handling of oversubscribed traffic in applications such as data centers and dense-core uplinks
• Line-rate operation for five 10-Gigabit Ethernet ports from each port group, or a total WAN bandwidth of 100 Gbps with Packet Forwarding Engine bandwidth of 50 Gbps
• Flexible encapsulation, source address and destination address media access control (MAC) filtering, source address MAC learning, MAC accounting, and MAC policing
• Interface encapsulations, such as the following:
  • ethernet-ccc—Ethernet cross-connect
  • vlan-ccc—802.1Q tagging for a cross-connect
  • ethernet-tcc—Ethernet translational cross-connect
  • vlan-tcc—Virtual LAN (VLAN) translational cross-connect
  • extended-vlan-ccc—Standard Tag Protocol Identifier (TPID) tagging for a cross-connect
  • ethernet-vpls—Ethernet virtual private LAN service
  • vlan-vpls—VLAN virtual private LAN service
  • flexible-ethernet-services—Allows per-unit Ethernet encapsulation configuration
• Single, stacked, and flexible VLAN tagging modes
• Native VLAN configuration to allow untagged frames to be received on the tagged interfaces
• Maximum transmission unit (MTU) size of up to 9192 bytes for Ethernet frames
• Link aggregation group (LAG) on single chassis
• Interoperability with other 10-Gigabit Ethernet PICs in M Series and T Series routers in the LAN PHY and WAN PHY modes
• Interrupt-driven link-down detection mechanism
• Two-to-one oversubscription of traffic across a port group

  Traffic from 10 ingress ports to the Packet Forwarding Engine traffic is statically mapped to one of the 5 egress ports. 10 Gbps of bandwidth toward the Packet Forwarding Engine is shared by two ingress ports (called a port group), thereby achieving two-to-one oversubscription. This scheme provides two-to-one oversubscription across a port group and not across the entire PIC.

• Four queues per physical interface on ingress and eight queues per physical interface on egress
• A separate control queue per physical interface to ensure that the control packets are not dropped during oversubscribed traffic. The control queue can be disabled in the CLI.
• Optical diagnostics
• Behavior aggregate (BA) classification (IPv4 DSCP, IPv6 DSCP, Inet precedence, IEEE 802.1P, IEEE 802.1AD, MPLS EXP) and fixed classification
• Weighted round-robin scheduling with two queue priorities (low and strict-high)
• Committed information rate and peak information rate shaping on a per-queue basis
• Excess information rate configuration for allocation of excess bandwidth
• IEEE 802.3ah Operation, Administration, and Maintenance (OAM)-related operations, such as the following:
  • Link fault management
  • Link discovery
  • Graceful Routing Engine Switchover
• IEEE 802.3ag Operation, Administration, and Maintenance (OAM)-related operations, such as the following:
  • Connectivity fault management (CFM)
  • Linktrace
  • Loopback
  • Graceful Routing Engine switchover (GRES)

• Source address and destination address MAC filtering takes place after oversubscription is handled.
• Oversubscription on the PIC operates across a port group of two ports and not at the PIC level.
• Queuing is not supported at the logical interface level.
• Committed information rate and peak information rate configurations are not supported at the physical interface level.
• There is limited packet buffering of 2 MB.
• Delay-bandwidth buffering configuration is not supported.
• Multifield classifiers are not supported at the PIC level.

  The multifield classification can be done at the Packet Forwarding Engine using the firewall filters, which overrides the classification done at the PIC level. The multifield classification at the Packet Forwarding Engine occurs after the PIC handles the oversubscribed traffic.

• Egress MAC policer statistics not supported.
• Byte counters are not supported at the queue level.
• Only TPID (0x8100) is supported.
• Line-timing mode is not supported.
• MAC-level Rx VLAN tagged frames counter is not supported.
• OAM unified in-service software upgrade (unified ISSU) is not supported.
• OAM remote loopback is not supported.

The 10-port 10-Gigabit Ethernet LAN/WAN PIC (PD-5-10XGE-SFPP) supports link aggregation with the following type 3 10G PICs: 1x10GE IQ2, 1x10GE IQ2E, and 10GE-XENPAK. For bandwidth aggregation, load sharing, and link protection, LAG can be enabled. Once aggregated Ethernet is enabled, Link Aggregation Control Protocol (LACP) forms an aggregated bundle of member links.

Only features that are supported across all of the linked devices will be supported in the resulting LAG bundle. The following caveats apply to LAG bundles that involve 10-port 10-Gigabit Ethernet LAN/WAN PIC (PD-5-10XGE-SFPP) ports:

• Non-standard TPID for VLAN tagging is not supported, except for 0x8100.
• The number of user created IFLs is limited to 4065/PIC and 1022/port.
• Classifier tables are limited to 8 for each BA classifier type.
• Forwarding classes are limited to 8.
• The guaranteed-rate and shaping-rate statements are not supported at the IFD level.
• The per-unit-scheduler and hierarchical-scheduler statements are not supported.
• Only the strict-high and low levels of scheduling priorities are supported.
• The excess-priority configuration is not supported.
• The buffer-size configuration under schedulers is not supported.
• WRED is not supported.
• srTCM and trTCM are not supported.
• Shared scheduler mode is not supported.

Table 1 10-port 10-Gigabit Ethernet LAN/WAN PIC with SFP+ (PD-5-10XGE-SFPP).