NSX-T Data Center REST API
FlowCacheStatistics (schema)
Flow cache statistics
Provides the following statistics for flow cache since the time the edge
dataplane is UP:
- Number of active entries.
- Number of cache entry insertions.
- Number of bucket collisions when the entry insertion happens to
a bucket which is full.
- Number of key collisions when the entry to be inserted has a key
colliding with that of an existing entry.
- Number of cache hits, hit_rate, misses and skips.
- Number of packets that cannot be cached.
- Number of maximum entries with respect to size.
| Name | Description | Type | Notes |
|---|---|---|---|
| active | Active The number of current active entries in the flow cache. |
string | |
| bucket_collisions | Bucket collisions The total number of times when during an entry insertion, the corresponding bucket is full with unexpired entries. This collision will result in a flow cache miss. This is valid only for mega flow cache. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| dont_cache | Dont cache The total number of packets that cannot be cached. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| hit_rate | Hit rate The rate at which the packets matching the flow cache are forwarded. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| hits | Hits The total number of packets forwarded due to matching flow cache entry. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| insertions | Insertions The total number of times a new flow cache entry is added. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| key_collisions | Key collisions The total number of times a newly inserted entry has a key colliding with that of an existing entry. In this case, the new entry will replace the existing entry. This is only valid for mega flow cache. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| max_seen_percentage | Max seen percentage The percentage of maximum entries in a flow cache with respect to total size. This is collected from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| misses | Misses The total number of packets passed on to the next layer due to cache miss. The next layer can be either slow path (in case of megaflow cache) or megaflow cache (in case of microflow cache). The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string | |
| skipped | Skipped The total number of packet misses due to unsupported packet type or the cache is disabled. The counts are from the time the edge dataplane is UP and will be reset on edge reboot or edge dataplane restart. |
string |