Virtual PortChannel
E181690
Virtual PortChannel is a Cisco Nexus technology that allows links connected to two separate switches to appear as a single logical port channel, providing redundancy and load balancing without requiring Spanning Tree blocking.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Virtual PortChannel canonical | 2 |
| vPC | 1 |
| vPC+ (Virtual Port Channel Plus) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1590458 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Virtual PortChannel Context triple: [Cisco Nexus switches, supportsTechnology, Virtual PortChannel]
-
A.
VTP
VTP (VLAN Trunking Protocol) is a Cisco proprietary Layer 2 protocol used to manage and propagate VLAN configuration information across switches in a network.
-
B.
IEEE 802.1Qfp
IEEE 802.1Qfp is an IEEE networking standard that defines mechanisms for enhanced traffic scheduling and queuing in bridged and time-sensitive Ethernet networks.
-
C.
IEEE 802.1Qfv
IEEE 802.1Qfv is an amendment to the IEEE 802.1Q standard that defines enhancements for flexible queuing and forwarding behaviors in bridged and virtualized Ethernet networks.
-
D.
IEEE 802.1Qem
IEEE 802.1Qem is an Ethernet networking standard within the IEEE 802.1 family that specifies mechanisms for enhanced management and control of bridged and virtualized network environments.
-
E.
Fibre Channel
Fibre Channel is a high-speed network technology primarily used to connect computer data storage in storage area networks (SANs), offering low-latency, high-throughput communication for enterprise environments.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Virtual PortChannel Target entity description: Virtual PortChannel is a Cisco Nexus technology that allows links connected to two separate switches to appear as a single logical port channel, providing redundancy and load balancing without requiring Spanning Tree blocking.
-
A.
VTP
VTP (VLAN Trunking Protocol) is a Cisco proprietary Layer 2 protocol used to manage and propagate VLAN configuration information across switches in a network.
-
B.
IEEE 802.1Qfp
IEEE 802.1Qfp is an IEEE networking standard that defines mechanisms for enhanced traffic scheduling and queuing in bridged and time-sensitive Ethernet networks.
-
C.
IEEE 802.1Qfv
IEEE 802.1Qfv is an amendment to the IEEE 802.1Q standard that defines enhancements for flexible queuing and forwarding behaviors in bridged and virtualized Ethernet networks.
-
D.
IEEE 802.1Qem
IEEE 802.1Qem is an Ethernet networking standard within the IEEE 802.1 family that specifies mechanisms for enhanced management and control of bridged and virtualized network environments.
-
E.
Fibre Channel
Fibre Channel is a high-speed network technology primarily used to connect computer data storage in storage area networks (SANs), offering low-latency, high-throughput communication for enterprise environments.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Cisco Nexus feature
ⓘ
link aggregation technology ⓘ |
| allows | links to two separate switches to appear as one logical port channel ⓘ |
| alsoKnownAs |
Virtual PortChannel
ⓘ
surface form:
vPC
|
| compatibleWith |
IEEE 802.1D MAC bridging standard
ⓘ
surface form:
Multiple Spanning Tree Protocol
Rapid Spanning Tree Protocol ⓘ IEEE 802.1D MAC bridging standard ⓘ
surface form:
Spanning Tree Protocol
|
| contrastsWith |
Spanning Tree-based redundancy only
ⓘ
traditional single-chassis port channel ⓘ |
| designedFor |
high availability
ⓘ
non-disruptive maintenance ⓘ scalable Layer 2 domains ⓘ |
| developedBy | Cisco Systems ⓘ |
| documentedIn |
Cisco NX‑OS
ⓘ
surface form:
Cisco Nexus 5000 Series NX-OS Software Configuration Guide
Cisco Nexus switches ⓘ
surface form:
Cisco Nexus 7000 Series NX-OS Interfaces Configuration Guide
|
| enables | loop-free topologies without blocking links ⓘ |
| hasComponent |
vPC primary switch
ⓘ
vPC secondary switch ⓘ |
| improves |
bandwidth utilization
ⓘ
network availability ⓘ |
| introducedInProductFamily |
Cisco Nexus switches
ⓘ
surface form:
Cisco Nexus 5000 Series
Cisco Nexus switches ⓘ
surface form:
Cisco Nexus 7000 Series
|
| prevents | Spanning Tree Protocol blocking on member links ⓘ |
| provides |
link redundancy
ⓘ
load balancing ⓘ multi-chassis link aggregation ⓘ |
| reduces | Spanning Tree blocked ports ⓘ |
| requires |
consistent configuration between vPC peers
ⓘ
vPC domain configuration ⓘ |
| runsOn |
Cisco Nexus switches
ⓘ
Cisco NX‑OS ⓘ
surface form:
NX-OS
|
| supports |
Link Aggregation Group
ⓘ
surface form:
EtherChannel
Layer 2 port channels ⓘ active-active uplinks ⓘ dual-homed downstream switches ⓘ dual-homed servers ⓘ |
| supportsFeature |
auto-recovery
ⓘ
delay-restore timers ⓘ orphan port handling ⓘ peer-gateway ⓘ peer-switch ⓘ role preemption configuration ⓘ |
| usedIn |
data center networks
ⓘ
leaf-spine architectures ⓘ server access layer designs ⓘ |
| uses |
vPC peer-keepalive link
ⓘ
vPC peer-link ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Virtual PortChannel Description of subject: Virtual PortChannel is a Cisco Nexus technology that allows links connected to two separate switches to appear as a single logical port channel, providing redundancy and load balancing without requiring Spanning Tree blocking.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
vPC
this entity surface form:
vPC+ (Virtual Port Channel Plus)
subject surface form:
Cisco NX-OS