# Constraints

#### Clusters and Nodes

The following table describes restrictions on clusters and nodes in CSS.

Table 1 Restrictions on clusters and nodes
Cluster and Node | Restriction
--- | ---
Maximum number of nodes in a cluster | 32
Minimum number of nodes in a cluster | 1

#### Browsers

- You are advised to use the following browsers to access the CSS management console:
  - Google Chrome 36.0 or later
  - Mozilla Firefox 35.0 or later
- You are advised to use the following browsers to access Kibana integrated in CSS:
  - Google Chrome 36.0 or later
  - Mozilla Firefox 35.0 or later

Parent topic: Overview