OcNOS 6.6.1 is now generally available. This release delivers the complete AI fabric solution on Broadcom Tomahawk 5-based open hardware — building on the PFC and ETS foundations introduced in OcNOS 6.6 to provide a production-ready lossless RoCEv2 fabric for AI/ML GPU clusters. Service provider deployments benefit from additional Segment Routing enhancements and expanded EVPN coverage.
Complete AI Fabric on Broadcom Tomahawk 5
OcNOS 6.6.1 DC delivers full lossless AI fabric support on Tomahawk 5 platforms including the UfiSpace S9321-64EO (64×800G OSFP, 51.2 Tbps). This includes Priority-Based Flow Control (PFC), Enhanced Transmission Selection (ETS), DCBX auto-negotiation, Explicit Congestion Notification (ECN), and RDMA-aware queue management — all validated for production RoCEv2 GPU workloads.
| Capability |
OcNOS 6.6 |
OcNOS 6.6.1 |
| PFC (Priority-Based Flow Control) |
Initial (select platforms) |
✓ Full TH5 support |
| ETS (bandwidth allocation) |
Initial |
✓ Full TH5 support |
| DCBX auto-negotiation |
Partial |
✓ IEEE and CEE modes |
| ECN (congestion notification) |
No |
✓ Full ECN marking |
| 800G platform (TH5) |
No |
✓ UfiSpace S9321-64EO |
| RoCEv2 queue profiles |
No |
✓ Pre-validated profiles |
! OcNOS 6.6.1 DC -- Complete AI fabric configuration on TH5
!
! Step 1: DSCP-to-CoS mapping for RoCEv2
qos map dscp-cos AI-FABRIC-MAP
dscp 24 cos 3 ! RoCEv2 (CS3) -> priority 3
dscp 46 cos 5 ! Expedited (EF) -> priority 5
!
! Step 2: PFC on RoCEv2 priority
interface Ethernet1/1
qos map dscp-cos AI-FABRIC-MAP
priority-flow-control mode on
priority-flow-control priority 3 no-drop ! Lossless for RoCEv2
priority-flow-control priority 5 no-drop ! Lossless for control
!
! Step 3: ETS bandwidth guarantees
qos scheduler-group AI-SCHEDULER
strict-priority 7 ! Highest: network control
wrr cos 5 weight 10 ! 10%: routing/signaling
wrr cos 3 weight 70 ! 70%: RoCEv2 (GPU all-reduce)
wrr cos 0 weight 20 ! 20%: best-effort
!
! Step 4: ECN marking threshold
qos wred AI-WRED
cos 3 min-threshold 80 max-threshold 95 drop-probability 100
ecn ! Mark ECN instead of drop
!
! Step 5: DCBX (auto-negotiate with GPU servers)
interface Ethernet1/1
dcbx enable
dcbx version ieee ! IEEE 802.1Qaz
!
! Step 6: Apply scheduler to interface
interface Ethernet1/1
qos scheduler-group AI-SCHEDULER egress
!
! Verification:
show priority-flow-control
show dcbx interface Ethernet1/1
show qos scheduler-group AI-SCHEDULER
Segment Routing Enhancements (SP)
OcNOS 6.6.1 SP expands Segment Routing capabilities with additional Flex-Algo improvements including refined delay advertisement thresholds, improved algorithm convergence during topology changes, and enhanced SR-TE policy path computation. The RSVP Auto-Bypass feature is also introduced in this release — see the RSVP Auto Bypass guide for details.
EVPN Service Expansion
OcNOS 6.6.1 expands EVPN coverage with improvements to EVPN-ETREE service handling, enhanced multi-homed ESI mass withdrawal timing, and improved EVPN IRB (Integrated Routing and Bridging) gateway performance for data center environments requiring simultaneous L2 and L3 forwarding within the same VNI.
IP Infusion Product Team
OcNOS 6.6 is now generally available. This release marks the arrival of production-ready Flex-Algo for service provider networks — enabling true network slicing over a single IS-IS domain without additional hardware. For data center operators, OcNOS 6.6 lays the AI fabric groundwork with PFC and ETS support for RoCEv2 workloads, fully delivered in OcNOS 6.6.1 and 7.0.
Flex-Algo: Production Network Slicing
OcNOS 6.6 delivers full Flex-Algo production support including delay-metric and TE-metric algorithm types, per-algorithm SID assignment, and SR-TE policy integration. Network operators can now define multiple logical topologies — one optimized for latency-sensitive 5G traffic, another for high-bandwidth bulk data — over a single physical IS-IS domain without additional hardware or overlay complexity.
! OcNOS 6.6 -- Production Flex-Algo deployment
!
router isis CORE
! Algorithm 128: optimize for minimum link delay (5G, real-time)
flex-algo 128
metric-type delay
advertise-definition
!
! Algorithm 129: optimize for TE metric (bulk bandwidth)
flex-algo 129
metric-type te-metric
advertise-definition
!
address-family ipv4 unicast
segment-routing mpls
exit-address-family
!
! Per-algorithm SIDs on loopback
interface lo
isis segment-routing prefix-sid index 1 ! Algo 0 (default)
isis segment-routing prefix-sid algorithm 128 index 1001 ! Algo 128
isis segment-routing prefix-sid algorithm 129 index 2001 ! Algo 129
!
! Verify Flex-Algo topology:
show isis flex-algo
show isis segment-routing prefix-sids | include algo
OcNOS 6.6 for Data Centers
OcNOS 6.6 DC introduces initial PFC (Priority-Based Flow Control) and ETS (Enhanced Transmission Selection) support for Broadcom-based platforms — the lossless fabric foundations required for RoCEv2 AI workloads. Full Tomahawk 5 AI fabric support arrives in OcNOS 6.6.1 and 7.0.
New Platforms in OcNOS 6.6
| Platform |
Silicon |
Ports |
Use Case |
| Edgecore AS5916-54XL |
Broadcom QMX |
48×10G + 6×100G |
Carrier-grade aggregation |
| UfiSpace S9502-12SM (QUX) |
Broadcom QUX |
4×10G + 8×1G |
Fanless compact edge |
IP Infusion Product Team
OcNOS 6.6 for Data Centers is now generally available. This release initiates the AI fabric journey — PFC and ETS arrive in OcNOS 6.6, providing the lossless RoCEv2 transport foundations that GPU clusters require. Full Tomahawk 5-based 800G AI fabric support completes in OcNOS 6.6.1 and 7.0. For existing EVPN-VXLAN deployments, OcNOS 6.6 delivers meaningful policy and visibility improvements.
AI Fabric: PFC and ETS for RoCEv2
OcNOS 6.6 DC introduces PFC (Priority-Based Flow Control) and ETS (Enhanced Transmission Selection) on supported Broadcom platforms. These are the two essential building blocks for lossless Ethernet required by RoCEv2 GPU-to-GPU communication in AI training fabrics.
! OcNOS 6.6 DC -- PFC and ETS for RoCEv2 (AI fabric)
!
! Map RoCEv2 traffic (DSCP 24 = CS3) to priority 3
qos map dscp-cos ROCE-DSCP-MAP
dscp 24 cos 3
!
! Enable PFC on priority 3 (no-drop = lossless)
interface Ethernet1/1
qos map dscp-cos ROCE-DSCP-MAP
priority-flow-control mode on
priority-flow-control priority 3 no-drop
!
! ETS: guarantee 70% bandwidth to RoCEv2 priority
qos scheduler-group AI-FABRIC
wrr cos 3 weight 70 ! 70% for RoCEv2 (priority 3)
wrr cos 0 weight 30 ! 30% for best-effort
!
! DCBX: auto-negotiate PFC/ETS with GPU servers
interface Ethernet1/1
dcbx enable
dcbx version ieee
!
! Verification:
show priority-flow-control interface Ethernet1/1
show dcbx interface Ethernet1/1
show qos scheduler-group AI-FABRIC
EVPN Policy Enhancements
OcNOS 6.6 DC expands EVPN policy capabilities with enhanced route-map enforcement for EVPN route advertisement. Operators gain fine-grained control over which routes are imported, exported, and shared across VNIs — improving security boundaries and control-plane efficiency in large multi-tenant VXLAN fabrics.
! OcNOS 6.6 DC -- EVPN route-map for tenant isolation
!
router bgp 65001
address-family l2vpn evpn
! Restrict which VNIs are advertised to DCI peers
neighbor 10.200.0.1 route-map TENANT-EXPORT out
exit-address-family
!
route-map TENANT-EXPORT permit 10
! Only export production VNIs (10100-10199) to DCI
match evpn vni 10100-10199
!
route-map TENANT-EXPORT deny 20
! Block dev/test VNIs from DCI
!
Edgecore AS5916-54XL (QMX) Platform
OcNOS 6.6 DC introduces the Edgecore AS5916-54XL on Broadcom QMX silicon — a 48×10G + 6×100G carrier-grade aggregation switch that bridges SP and DC use cases. This platform is designed for operators who need a single device to handle both aggregation routing and data center top-of-rack roles.
IP Infusion Product Team
OcNOS 6.6 for Service Providers is now generally available. This release is defined by the arrival of production Flex-Algo — full Segment Routing Flexible Algorithm with delay-metric and TE-metric optimization types, per-algorithm SID assignment, and SR-TE policy integration. Service providers can now implement true network slicing for 5G, enterprise, and bulk data services over their existing IS-IS SR infrastructure.
Flex-Algo: Full Production Deployment
OcNOS 6.6 SP delivers complete Flex-Algo support including multi-algorithm IGP, per-router per-algorithm SID allocation, link delay advertisement via IS-IS TE extensions, and traffic steering via SR-TE policies. See the Flex-Algo technical guide for full configuration details.
! OcNOS 6.6 SP -- SR Flex-Algo with IS-IS delay advertisement
!
! Configure per-link delay measurement and advertisement
interface eth-0-1
ip router isis CORE
isis metric 10
performance-measurement delay-measurement
advertise-delay
delay-threshold 3000 ! Re-advertise if delay changes >3ms
!
!
router isis CORE
! Flex-Algo 128: delay-optimized for 5G fronthaul
flex-algo 128
metric-type delay
advertise-definition
priority 128
!
address-family ipv4 unicast
segment-routing mpls
exit-address-family
!
interface lo
ip address 10.0.0.1/32
ip router isis CORE
isis segment-routing prefix-sid index 1
isis segment-routing prefix-sid algorithm 128 index 1001
!
show isis flex-algo 128 detail
show performance-measurement delay interface eth-0-1
Enhanced BFD Performance
OcNOS 6.6 SP improves BFD (Bidirectional Forwarding Detection) session capacity and timer accuracy. Operators can now run higher BFD session counts at aggressive timer intervals (3×100ms = 300ms detection time) across larger deployments without CPU overhead concerns.
! OcNOS 6.6 SP -- BFD with aggressive timers for fast failure detection
!
router isis CORE
bfd all-interfaces
bfd interval 100 min_rx 100 multiplier 3 ! 300ms detection time
!
! Verify BFD sessions:
show bfd neighbors
show bfd neighbors detail | include State
New Fanless Platform: UfiSpace S9502-12SM (QUX)
OcNOS 6.6 introduces the UfiSpace S9502-12SM on Broadcom QUX silicon — a passively cooled compact router designed for edge and remote site deployments without timing requirements. With 4×10G SFP+ and 8×1G SFP ports in a 1U fanless form factor, this platform covers FWA aggregation hubs and ISP edge nodes in rural deployments.
IP Infusion Product Team
OcNOS 6.5 is now generally available for service providers and data center operators. This release advances OcNOS automation capabilities with expanded OpenConfig YANG model support, adds new high-density 400G platforms for aggregation and spine deployments, and delivers Segment Routing improvements including the foundations of Flex-Algo for network slicing.
OpenConfig YANG Model Support
OcNOS 6.5 is a significant step forward for vendor-neutral automation. NETCONF clients can now interact with OcNOS switches using standardized OpenConfig YANG data models — in addition to IP Infusion’s native models. This allows operators to use a single automation framework across OcNOS and other OpenConfig-capable devices in their network.
! OcNOS 6.5 -- OpenConfig interface configuration via NETCONF
!
! Example NETCONF edit-config using OpenConfig interface model:
! <edit-config>
! <target><running/></target>
! <config>
! <interfaces xmlns="http://openconfig.net/yang/interfaces">
! <interface>
! <name>eth-0-1</name>
! <config>
! <name>eth-0-1</name>
! <description>Uplink to Spine-1</description>
! <enabled>true</enabled>
! </config>
! </interface>
! </interfaces>
! </config>
! </edit-config>
!
! Verify OpenConfig capabilities advertised:
show netconf capabilities | include openconfig
New Hardware Platforms in OcNOS 6.5
| Platform |
Silicon |
Ports |
Use Case |
| UfiSpace S9600-72XC |
Broadcom Trident 4 |
48×100G + 8×400G |
SP aggregation, 400G migration |
| Edgecore AS9516-32D |
Broadcom Tomahawk 3 |
32×400G QSFP-DD |
DC spine, 400G fabric |
| UfiSpace S9502-16SMT |
Broadcom QUX |
16×SFP+ + 4×100G |
Fanless CSR / FWA edge |
Segment Routing Enhancements
OcNOS 6.5 delivers Flex-Algo foundation capabilities for IS-IS SR deployments. Operators can define custom routing algorithms with TE-metric and delay-metric optimization types, laying the groundwork for network slicing deployments that arrive fully in OcNOS 6.6.
EVPN-VXLAN Improvements (Data Center)
OcNOS 6.5 DC expands EVPN-VXLAN operational capabilities including improved MAC/IP route withdrawal timing, enhanced VNI-level statistics, and improved VXLAN tunnel encapsulation performance on supported Broadcom platforms.
IP Infusion Product Team
OcNOS 6.5 for Service Providers is now generally available. With over 10,000 active deployments, OcNOS-SP has established itself as the preferred disaggregated NOS for white-box platforms across ISPs, CLECs, and mobile operators. OcNOS 6.5 delivers hardened capabilities across all SP use cases with particular focus on 5G backhaul timing, SR-MPLS scale, and operational efficiency.
5G Timing and Synchronization
Accurate timing is a non-negotiable requirement for 5G fronthaul and midhaul deployments. OcNOS 6.5 advances PTP (IEEE 1588v2) implementation with improved boundary clock accuracy, enhanced grandmaster selection, and expanded support for SyncE (Synchronous Ethernet) on additional platform models.
! OcNOS 6.5 SP -- PTP boundary clock for 5G backhaul
!
ptp
clock-type boundary
domain 24 ! Standard telecom profile domain
priority1 128
priority2 128
profile g8275.1 ! ITU-T G.8275.1 telecom profile
!
port eth-0-1
unicast-negotiation enable
master-only disable ! BC mode: can be master or slave
!
port eth-0-2
unicast-negotiation enable
!
!
! SyncE for frequency synchronization:
interface eth-0-1
synchronous-ethernet enable
esmc send
!
! Verify timing state:
show ptp clock
show ptp port dataset
show ptp time-status
SR-MPLS Scale Improvements
OcNOS 6.5 SP improves SR-MPLS forwarding table scale for large domain deployments. The expanded Node SID database and improved label space management allow operators to run larger SR domains without hitting per-platform limits seen in earlier releases.
New Fanless Platform: UfiSpace S9502-16SMT
OcNOS 6.5 introduces support for the UfiSpace S9502-16SMT — a compact, fanless cell site router designed for outdoor cabinet and street-level deployments. With 16×SFP+ and 4×100G ports in a passively cooled design, this platform covers 5G backhaul aggregation in locations where active cooling is impractical.
| Platform |
Ports |
Cooling |
Use Case |
| UfiSpace S9502-16SMT |
16×SFP+ + 4×100G QSFP28 |
Fanless (passive) |
Outdoor CSR, street cabinet, 5G midhaul |
| UfiSpace S9502-12SM |
4×10G SFP+ + 8×1G SFP |
Fanless |
Compact edge, FWA aggregation |
OcNOS-SP Use Cases Covered in 6.5
- Access Router (AR) — fiber and DSL aggregation, BNG integration via EVPN-MPLS
- Cell Site Router (CSR) — 5G fronthaul / midhaul / backhaul with PTP timing
- Aggregation Router — 100G and 400G metro aggregation with SR-MPLS
- IPoDWDM — converged IP/optical management via OcNOS CLI
- Data Center Interconnect (DCI) — EVPN-VXLAN overlay between data centers
IP Infusion Product Team
OcNOS 6.5 for Data Centers is now generally available. This release is the automation milestone — OpenConfig YANG model support via NETCONF means DC operators can manage OcNOS switches using the same automation frameworks they use for other OpenConfig-capable devices. Combined with new 400G spine platform support and EVPN-VXLAN scale improvements, OcNOS 6.5 DC delivers a mature, production-ready disaggregated fabric platform.
OpenConfig YANG Model via NETCONF
OcNOS 6.5 DC supports server-side NETCONF with OpenConfig YANG data models for interfaces, BGP, and network instances. This is the key capability that enables OcNOS to integrate into Ansible, Terraform, and custom automation frameworks that already use OpenConfig for multi-vendor network management.
! OcNOS 6.5 DC -- Ansible automation with OpenConfig via NETCONF
!
! Example Ansible task using OcNOS OpenConfig NETCONF module:
!
! - name: Configure VXLAN interface via OpenConfig NETCONF
! netconf_config:
! host: "{{ inventory_hostname }}"
! username: admin
! password: "{{ vault_password }}"
! content: |
! <config>
! <interfaces xmlns="http://openconfig.net/yang/interfaces">
! <interface>
! <name>vxlan1</name>
! <config>
! <name>vxlan1</name>
! <description>VXLAN fabric overlay</description>
! </config>
! </interface>
! </interfaces>
! </config>
!
! Verify NETCONF OpenConfig support:
show netconf capabilities | include openconfig
show netconf server statistics
New 400G Spine Platform: Edgecore AS9516-32D
OcNOS 6.5 DC introduces support for the Edgecore AS9516-32D — a 32×400G QSFP-DD spine switch on Broadcom Tomahawk 3, delivering 12.8 Tbps of switching capacity for large-scale DC fabric deployments. This platform enables operators to migrate from 100G spine to 400G without changing NOS.
EVPN-VXLAN Scale and Stability
OcNOS 6.5 DC improves EVPN-VXLAN scale limits across supported platforms:
| Resource |
OcNOS 6.4 |
OcNOS 6.5 |
| VNIs per switch |
4,096 |
8,192 |
| MAC entries per VNI |
32K |
64K |
| VTEP peers |
128 |
256 |
| BGP EVPN routes |
500K |
1M |
! OcNOS 6.5 DC -- Verify scale headroom
!
show evpn vni summary
! Displays: total VNIs active, MAC table utilization
show bgp l2vpn evpn summary
! Displays: total EVPN routes, peer count, memory usage
show vxlan fdb summary
! Displays: total MAC entries, remote VTEP count
IP Infusion Product Team
OcNOS 6.4 is now generally available for service providers and data center operators. This release advances key operational and automation capabilities, with gNMI streaming telemetry arriving in the data center product line and substantial CLI management and EVPN improvements for service providers.
OcNOS 6.4 for Service Providers
CLI and Management Improvements
OcNOS 6.4 expands the industry-standard CLI with enhanced show command output, improved structured data formatting for automation pipelines, and additional NETCONF YANG model coverage. Network administrators managing large OcNOS deployments gain more consistent and parseable output across all show commands.
EVPN Enhancements
OcNOS 6.4 delivers significant EVPN improvements for SP deployments including enhanced multi-homing DF election stability, improved BGP EVPN route filtering, and expanded EVPN-VPWS (E-LINE) capabilities for point-to-point L2 services.
Performance and Scale
OcNOS 6.4 SP improves convergence times for large BGP table deployments and expands route table scale for operators running full internet routing tables at the peering edge.
OcNOS 6.4 for Data Centers
gNMI Streaming Telemetry
OcNOS 6.4 introduces gNMI dial-in streaming telemetry for data center switches. Network monitoring systems can subscribe to real-time data streams from OcNOS switches using standardized gNMI subscriptions over standard OpenConfig and native YANG data models.
! OcNOS 6.4 DC -- gNMI streaming telemetry (dial-in mode)
!
telemetry
subscription DC-MONITORING
protocol gNMI
encoding JSON_IETF
sensor-group DC-SENSORS
! OpenConfig interface counters
path /interfaces/interface/state/counters
! EVPN VNI state
path /network-instances/network-instance/fdb/mac-table/entries
!
destination-group PROMETHEUS
address 10.100.0.20 port 57400
!
sample-interval 30000 ! 30-second periodic samples
!
!
show telemetry subscription DC-MONITORING
EVPN-VXLAN Improvements
OcNOS 6.4 DC delivers Route Target filtering for granular multi-tenant EVPN policy control, and route-map enforcement for EVPN route advertisement. Operators gain fine-grained control over which routes are imported and exported across VNIs in large VXLAN fabrics.
New Platforms in OcNOS 6.4
| Platform |
Use Case |
Key Specs |
| UfiSpace S9510-28DC |
SP aggregation / MEF 3.0 |
28×100G QSFP28 |
| Edgecore AS9516-32D |
DC core / spine |
32×400G QSFP-DD |
IP Infusion Product Team
OcNOS 6.4 for Data Centers is now generally available. This release focuses on operational visibility and policy precision — two requirements that define mature data center NOS deployments at scale. The headline addition is gNMI-based streaming telemetry with OpenConfig YANG models, giving DC operators real-time insight into fabric state using standardized, vendor-neutral interfaces.
gNMI Streaming Telemetry with OpenConfig
OcNOS 6.4 DC supports gNMI server dial-in mode — network monitoring systems subscribe to OcNOS data center switches and receive real-time streaming data using OpenConfig YANG data models. This is the industry-standard path away from SNMP polling toward event-driven network observability.
! OcNOS 6.4 DC -- gNMI OpenConfig subscription
!
telemetry
subscription FABRIC-OC
protocol gNMI
encoding JSON_IETF
sensor-group OC-INTERFACES
! OpenConfig standard path -- works with any gNMI collector
path openconfig:/interfaces/interface[name=*]/state/counters
path openconfig:/interfaces/interface[name=*]/state/oper-status
!
destination-group COLLECTOR
address 10.100.0.50 port 57400
!
sample-interval 10000 ! 10-second samples for counters
!
subscription FABRIC-EVENTS
sensor-group OC-BGP
path openconfig:/network-instances/network-instance[name=*]/protocols/protocol/bgp/neighbors/neighbor[neighbor-address=*]/state/session-state
!
destination-group COLLECTOR
sample-interval 0 ! On-change for BGP session events
!
EVPN Route Target Filtering
OcNOS 6.4 DC introduces Route Target (RT) filtering for EVPN-VXLAN deployments. In large multi-tenant fabrics with many VNIs, selective RT import and export controls prevent unnecessary route propagation, reduce control-plane memory consumption, and improve BGP convergence speed.
! OcNOS 6.4 DC -- EVPN RT filtering for multi-tenant isolation
!
router bgp 65001
address-family l2vpn evpn
!
! Import only specific RT communities from this neighbor
neighbor 10.0.0.2 route-map RT-FILTER in
!
! Export specific VNIs to DCI peers only
neighbor 10.200.0.1 route-map DCI-EXPORT out
exit-address-family
!
route-map RT-FILTER permit 10
match extcommunity RT-LIST
!
ip extcommunity-list RT-LIST permit rt 65001:10001
ip extcommunity-list RT-LIST permit rt 65001:10002
!
! Verify RT filtering is active:
show bgp l2vpn evpn summary
show bgp l2vpn evpn route type prefix detail | include RT
Selective Packet Mirroring
OcNOS 6.4 DC introduces selective mirroring to CPU with intelligent filtering. Operators can capture specific traffic flows for analysis directly within the fabric — without external tap hardware or dedicated capture infrastructure.
! OcNOS 6.4 DC -- Selective packet mirroring
!
monitor session 1
source interface Ethernet1/1 rx
filter access-group MIRROR-FILTER
destination cpu
!
ip access-list MIRROR-FILTER
permit ip 10.10.1.0/24 any ! Mirror traffic from specific subnet
permit udp any any dst-port 4789 ! Mirror VXLAN-encapsulated frames
!
show monitor session 1
show capture buffer statistics
IP Infusion Product Team
OcNOS 6.4 for Service Providers is now generally available. This release delivers improvements across the full SP use case portfolio — from access routers and cell site routers through aggregation and core — with a focus on network management, operational efficiency, and scale for large SP deployments.
CLI Management Enhancements
The OcNOS command-line interface is consistently described by SP engineers as “industry-standard” — familiar to anyone with Cisco or Juniper experience. OcNOS 6.4 expands this with improved structured output across all major show commands, making it easier to feed OcNOS data into automation pipelines and network management systems.
! OcNOS 6.4 SP -- Enhanced show command output examples
!
! BGP summary with improved formatting:
show bgp summary
! Now includes: peer group state, prefix counts, convergence timing
! IS-IS neighbor detail with expanded state information:
show isis neighbor detail
! EVPN instance state:
show evpn evi detail
! Interface counters in structured format:
show interface eth-0-1 counters
! Route table with prefix filtering:
show ip route 10.0.0.0/8 longer-prefixes
NETCONF YANG Model Expansion
OcNOS 6.4 expands NETCONF YANG model coverage for SP use cases, adding models for:
- IS-IS instance configuration and state
- BGP peer group management
- MPLS label space management
- Interface queue statistics
! OcNOS 6.4 SP -- NETCONF configuration push example
!
! Query IS-IS neighbors via NETCONF (YANG model):
! <get>
! <filter type="subtree">
! <routing xmlns="urn:ietf:params:xml:ns:yang:ietf-routing">
! <control-plane-protocols>
! <control-plane-protocol>
! <isis xmlns="urn:ietf:params:xml:ns:yang:ietf-isis">
! <adjacencies/>
! </isis>
! </control-plane-protocol>
! </control-plane-protocols>
! </routing>
! </filter>
! </get>
!
! Verify NETCONF session:
show netconf server
show netconf sessions
EVPN Multi-homing Stability
OcNOS 6.4 SP improves EVPN Ethernet Segment Designated Forwarder (DF) election stability, reducing unnecessary DF re-elections during transient topology events. This improves service availability for multi-homed CE deployments where DF flaps caused brief traffic interruptions in earlier releases.
! OcNOS 6.4 SP -- EVPN multi-homing DF election tuning
!
evpn
ethernet-segment 1
identifier type-3 10.0.0.1
df-election preemption-time 5 ! 5-second delay before preempting DF
df-election hold-time 10 ! 10-second hold before new election
!
!
! Verify DF election state:
show evpn ethernet-segment detail
show bgp l2vpn evpn route type ead ! Type-1 auto-discovery routes
BGP Convergence Improvements
OcNOS 6.4 SP improves BGP route processing performance for operators running full internet routing tables (900K+ prefixes). Processing time for large BGP UPDATE bursts is reduced, improving convergence speed after BGP session resets or peer reconnections.
IP Infusion Product Team