Release Notes for SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
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SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
In this release, Cisco supports installing Software for Open Networking in the Cloud (SONiC) on these Product IDs on the Cisco 8000 series routers.
● 8102-64H-0
● 8101-32FH-0
● 8122-64EHF-0
Table 1. SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
| Product impact |
Feature |
| Network Efficiency |
Headend replication support for BUM traffic |
| Software Reliability |
L3VNI support |
| Software Reliability |
IPv6 VTEP support |
| Software Reliability |
L2VNI support |
| Ease of Use |
In-transit packet capture with rate-limiter creation |
| Software Reliability |
IPv6 VTEP for L2/L3 VNI |
| Software Reliability |
BGP IPv4 underlay for EVPN overlay |
| Software Reliability |
BGP IPv6 underlay link-local address |
| Software Reliability |
BGP IPv6 underlay support |
| Software Reliability |
IPv4 VTEP for layer 2/layer 3 VNI |
| Network Efficiency |
L3 aliasing with BGP multipath |
| Software Reliability |
Route server support (eBGP) |
| Software Reliability |
EVPN eBGP signaling |
| Software Reliability |
Host routing |
| Software Reliability |
RT2 - MAC/IP advertisement route |
| Ease of Setup |
eBGP signaling for underlay and overlay |
| Software Reliability |
VLAN-based service interface |
| Network Efficiency |
Single-homing |
| Network Availability |
BUM ingress replication |
| Hardware Reliability |
MAC mobility |
| Network Availability |
Support for BFD hardware offload with BGP and Express Boot (Q200) |
There is no new hardware introduced in this release.
There are no changes in behavior in this release.
There are no open issues in this release.
Table 2. Known issues for SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
| Known Issues |
Description |
| Host mobility |
On the 8102-64H-0, 8101-32FH-0, and 8122-64EHF-0 platforms, host movement between two distinct Ethernet segments connected to the same dual-homed peers does not function as expected. This is caused by incorrect flag settings, which prevent proper route synchronization. |
| Process Restart |
Intermittently, BGP or SWSS process restarts may cause the system to crash. |
| BFD |
Bidirectional Forwarding Detection (BFD) is not supported on the 8122-64EHF-0 platform. |
| Q-Pair Hashing |
On the 8102-64H-0, 8101-32FH-0, Q-Pair hashing support is not available for bridging flows. (we support Q-pair hashing for bridging flows in 8122-64EHF-0 routers) On the 8102-64H-0, 8101-32FH-0, and 8122-64EHF-0 routers, the configuration sudo config platform cisco udf-hash set -qpid is not persistent after a configuration reload or reboot. |
| ARP rate |
On the 8122-64EHF-0 router, ARP packet processing may be slow under high ARP traffic conditions. The platform supports a maximum ARP processing rate of 500 packets per second. |
| VXLAN Fabric Uplink Flap |
On the 8122-64EHF-0 router, in a VXLAN fabric, bridge traffic may be duplicated if a VTEP uplink flap occurs. |
| L3 Traffic Duplication on VLAN |
On the 8102-64H-0, 8101-32FH-0 and 8122-64EHF-0 routers, momentary Layer 3 traffic duplication may occur after removing and re-adding a VLAN. |
| Portchannel |
On the 8102-64H-0, 8101-32FH-0, and 8122-64EHF-0 routers, packets may be ingressed on a port channel even when the port channel is down. These packets are processed in the pipeline; however, the control plane handles them as expected. |
| BGP |
In the 8102-64H-0, 8101-32FH-0, 8122-64EHF-0, for an iBGP IPv6 neighbor, if the interface flaps but fast failover is not enabled, the IPv6 global next-hop needs to be reprogrammed. However, since the BGP session itself does not flap, no reprogramming based on the socket name occurs. When the interface comes up and an IPv6 address is added, reprogramming is only done for interface-based neighbors—not for IPv6 host-based peers. |
This table outlines the versions of various components included in this release.
Table 3. Component version for SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
| Component |
Version |
| Linux Kernel |
6.1.0-11-2-amd64 |
| SAI API |
1.14.0 |
| FRR |
8.5.4 |
| LLDP |
1.0.16-1+deb12u1 |
| TeamD |
1.31-1 |
| SNMPD |
5.9.3+dfsg-2 |
| Python |
3.11.2-1+b1 |
| SYNCD |
1.0.0 |
| swss |
1.0.0 |
| Radvd |
1:2.19-1+b1 |
| ISC-DHCP |
4.4.3-P1-2 |
| sonic-gnmi version |
0.1 |
| redis-server |
5:7.0.15-1~deb12u4 |
| redis-tools version |
5:7.0.15-1~deb12u4 |
| eventd version |
1.0.0-0 |
| mgmt-framework version |
1.0-01 |
Table of supported hardware components and the minimum required software versions.
Table 4. Supported hardware for SONiC on Cisco 8000 Series Routers, Release 202405c.2.1.0
| Part Number |
Description |
| 8101-32FH-O |
Cisco 8100 1 RU Chassis with 32x400G QSFP56-DD with Open Software and without HBM on Q200 Silicon. |
| 8102-64H-O |
Cisco 8100 2 RU Chassis with 64x100G QSFP28 with Open Software and without HBM on Q200 Silicon. |
| 8201-32FH-O |
Cisco 8200 32x400G QSFPDD 1RU Fixed System w/HBM |
Table 5. Related resources
| Resource |
Description |
| Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.
|
|
| Introduces use-case-based documentation for SONiC through Learning Labs, offering guidance on use cases and configurations to facilitate deployment. Additionally, it enables experimentation and customization to meet specific network requirements. |
|
| Provides guidance on installing a new SONiC image on Cisco 8000 series routers, covering two installation methods: Open Network Install Environment (ONIE) and the sonic-installer command. |
|
| Provides detailed specifications and feature information for Cisco 8000 Series Routers in the Data Sheet. |
|
| Provides SONiC image download options for Cisco 8000 Series Routers. |
|
| Provides documentation for installing and deploying SONiC on Cisco 8000 Series Routers.
|
|
| Introduces use-case-based documentation for SONiC through Learning Labs, offering guidance on use cases and configurations to facilitate deployment. Additionally, it enables experimentation and customization to meet specific network requirements. |
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