Hello Anwar,
according to the datasheet below
https://www.cisco.com/c/en/us/products/collateral/switches/catalyst-6800-series-switches/datasheet-c78-733662.html?dtid=osscdc000283
There are two models of 8 x 10GE linecards, the second one using a more powerful DFC4 XL
>> Two models: C6800-8P10G, an 8-port 10-Gigabit Ethernet Fiber Module with DFC4 (Figure 3), and C6800‑8P10G-XL, an 8-port 10-Gigabit Ethernet Fiber Module with DFC4XL
I agree that there is no occurrence in cisco web site of part number C6800-8P10G++=
Have you found it on CCW tool ?
I see both entries on the CCW and with the same comments .
The C6800-8p10G= has 28 days of lead time, the C6800-8P10G++= has 56 days of lead time and it has flagged C as configurable. Also the C6800-8P10G= has the C flag and the SVIP flag.
The Configurable refers to the SFP+ optics that can be selected with the product.
Both supports 10GE SFP+ and GLC GE ports.
the C6800-8P10G= reports HW version 2.0, the C6800-8P10G++= reports HW version 1.0.
It would be better to consider the following about the DFC4 vs. DFC4XL, if you don't need a DFC4XL I would go for the C6800-8P10G= because it is the ufficial part number and the delivery time is 28 days vs. 56 days.
IF your device needs to handle a full BGP internet table you would need the XL version of the linecard
>>
Non-XL version: comes equipped with DFC4-E for distributed forwarding, supporting:
◦ >>>>>>>256K IPV4 and MPLS Forwarding entries, 128K IPV6 entries
◦ 64K IPV4/IPV6 Multicast routes
◦ 64K ACL entries (shared between QoS and security)
◦ 1M NetFlow entries (32 port card, with 2 forwarding engines)
◦ 512K NetFlow entries (8/16 port card, with 1 forwarding engine)
● XL version: equipped with DFC4-EXL for distributed forwarding, supporting
◦ >>>>>>1M IPV4 and MPLS Forwarding entries, 512K IPV6 entries
◦ 64K IPV4/IPV6 Multicast routes
◦ 256K ACL entries (shared between QoS and security)
◦ 2M NetFlow entries (32 port card, with 2 forwarding engines)
◦ 1M NetFlow entries (8/16 port card, with 1 forwarding engine)
Hope to help
Giuseppe
